Category: Class 9

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 5 Education Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 5 Education

Class 9 History Chapter 5 Education Textbook Questions and Answers

1. Choose the right option and rewrite the sentence:

Question 1.
The Scientist who developed the Param – 8000 supercomputer _________.
(a) Dr Vijay Bhatkar
(b) Dr R. H. Dave
(c) P. Parthasarathy
(d) None of the above
Answer:
(a) Dr. Vijay Bhatkar

Question 2.
The magazine Jeevan Shikshan is published by _______.
(a) Balbharati
(b) University Education Commission
(c) MSCERT
(d) NCERT
Answer:
(c) MSCERT

Question 3.
The educational institution called IIT is famous for educational in the area of _______.
(a) Agriculture
(b) Medicine
(c) Skilled managers
(d) Engineering
Answer:
(d) Engineering

2. Do as directed.

Question 1.
Complete the table below with details about individuals in the education field and their work.

Individual	Work
First education minister of India	Maulana Abul Kalam Azad.
—————–	Chairman of the University Education Commission
Prof Sayyad Rauf	…………..
……………………..	Kosbad Project

Answer:

Individual	Work
First education minister of India	Maulana Abul Kalam Azad.
Dr. Sarvapalli Radhakrishna	Chairman of the University Education Commission
Prof Sayyad Rauf	Preparation of common state-wide curriculum for Std. I to VII for Maharashtra.
Anutai Wagh	Kosbad Project

Question 2.
Obtain information about the National Council of Educational Research and Training, from the internet, and present it in the form of a timeline.
Answer:

1st September 1961	The National Council of Educational Research and Training (NCERT) was established in Delhi.
27th January 1967	The Maharashtra State Bureau of Textbook Production and Curriculum Research (Balbharati) was established in Pune.
1986	The National Policy on Education was adopted.
1988	The ‘Primary Education Curriculum was prepared.
1995	The Competency-based primary education curriculum.
1975	India met with success in its attempt to use a satellite for the purpose of education.
1970	The United Nations declared the year 1970 as the International Education Year. A seminar was organised in New Delhi and led to the establishment of an open university.
1974	The government appointed a committee under the chairmanship of P. Parthasarathy

3. Explain the following statements giving reasons for your answer:

Question 1.
The District Primary Education Programme was undertaken.
Answer:
(i) In 1994, the District Primary Education Programme (DPEP) was started with the objective of universalisation of primary education. It was implemented in seven States including Maharashtra.

(ii) The plan envisaged 100% attendance in primary schools, arresting student drop-out, education for girls and for the physically handicapped.

(iii) It included programmes such as research on and evaluation of primary education, alternative education, creating societal awareness, etc.

Question 2.
The NCERT was established.
Answer:
(i) National Council of Educational Research and Training (NCERT) was established in Delhi on the 1st of September 1961.

(ii) Its main objective is to help the Central Government in matters of school education in the context of a comprehensive policy and in implementing educational schemes. The NCERT was given the responsibility of educational research and development, training, extension, educational programmes, restructuring of school curriculum and textbooks.

(iii) It has played a central role in designing school curricula and textbooks with the cooperation of the Central Board of Secondary Education (CBSE).

(iv) It provides guidance and cooperation in the area of primary and secondary education to the state governments.

(v) It has been involved in designing workbooks and handbooks for teachers, in teacher training, in developing teaching-learning techniques and conducting talent search examinations at the national level.

Question 3.
The farmers were benefited by the Indian Agricultural Research Institute.
Answer:
(i) The Indian Agricultural Research Institute was given the status of a University in 1958 and work began in departments such as the development of the agriculture sector, research, well-equipped laboratories, soil science, agricultural sciences, economic botany and other departments.

(ii) Research also began on wheat, pulses, oilseeds, vegetables and many other problems.

(iii) Its most significant achievement is the fundamental research it has conducted on the methods of taking multiple crops in a year, which has been of great benefit to farmers.

4. Write notes:

Question 1.
Indira Gandhi National Open University
Answer:
(i) Indira Gandhi National Open University (IGNOU) was established with the objective that the stream of education should make
its way into every average household of the country.

(ii) The United Nations had declared 1970 as the International Education Year. In the same year, a seminar was organised in New Delhi on the subject of Open University by the Government of India Departments of Education and Social Welfare, Information and Broadcasting, University Grants Commission along with UNESCO. The idea of establishing an open university evolved in this seminar.

(iii) In 1974, the government appointed a committee under the chairmanship of P. Parthasarathy and the Open University took shape on 20 September, 1985 in accordance with its recommendations and suggestions. It was named after Prime Minister Indira Gandhi. Those who are unable to get a college education in the formal way are given concessions in eligibility criteria, age and other conditions for admission to this university.

(iv) In 1990, the IGNOU started an audio-visual distance education programme through Akashvani and Doordarshan. It conducted more than one thousand curricula of various branches.
It provides facilities for education through 58 training centres in the country and 41 centres in foreign countries.

Question 2.
Kothari Commission
Answer:
(i)In 1964 a Commission was appointed under the Chairmanship of Dr D. S. Kothari. Dr J. P. Naik made valuable contributions to the work of this Commission.

(ii)The Commission also recommended the 10+2+3 pattern for secondary, higher secondary and university education. This system was implemented from 1972.

(iii)The Commission also suggested a uniform national system of education, the inclusion of the mother tongue, Hindi and English in education, as well as continuing education, adult education, education by correspondence and open universities to make education trickle down to the lowest rungs of society.

(iv)It also recommended increased provision in the government’s budget for expenditure on education of neglected sections like the scheduled castes and tribes. Maharashtra government adopted the 10+2+3 pattern in 1972 and conducted the first Std X Board exam in 1975.

Question 3.
Bhabha Atomic Research Centre
Answer:
(i) Bhabha Atomic Research Centre (BARC) has conducted valuable research in the fields of nuclear physics, solid state physics, spectroscopy, chemical and life sciences.

(ii) It also started a school to train scientists for setting up nuclear reactors.

Question 4.
Balbharati
Answer:
(i) The Maharashtra State Bureau of Textbook Production and Curriculum Research (Balbharati) was established in Pune on 27 January 1967.

(ii) Balbharati prepares textbooks for school children. Textbooks are made in eight languages, namely, Marathi, Hindi, English, Urdu, Kannad, Sindhi, Gujarati and Telugu. ‘Kishor’, a monthly magazine for children, is also published by Balbharati.

5. Answer the following questions in detail:

Question 1.
Which programmes were included in the Operation Blackboard scheme?
Answer:
(i) The government made funds available to help improve the standard of the schools and to fulfil minimum educational needs such as at least two proper classrooms, toilets, one of the two teachers to be female, a blackboard, maps, laboratory apparatus, a small library, a playground, sports equipment, etc. This scheme helped the primary education system to gain some momentum.

(ii) In 1994, this scheme was expanded and provision was made for one additional classroom and for appointing one more teacher in schools with an enrolment of more than 100 students, with priority given to girls’ schools, schools with a majority of scheduled caste and tribe students and schools in rural areas.

(iii) It was also made binding upon the State government to appoint female teachers to fifty per cent of the posts in schools.

Question 2.
What role do agriculture schools/colleges play in the development of agriculture?
Answer:
(i) The Indian Agricultural Research Institute was given the status of a University in 1958 and work began in departments such as the development of the agriculture sector, research, well-equipped laboratories, soil science, agricultural sciences, economic botany and other departments. Research also began on wheat, pulses, oilseeds, vegetables and many other problems.

(ii) Its most significant achievement is the fundamental research it has conducted on the methods of taking multiple crops in a year, which has been of great benefit to farmers.

Question 3.
Describe with examples of the progress that India has made in the field of medicine.
Answer:
(i) The Indian Council for Medical Research (ICMR) was established for conducting research in the medical field. It was given the responsibility of cooperating with universities, medical colleges, government and non-government research institutes and giving them guidance and financial support for research activities.

(ii) Twenty-six centres were started in different parts of the country for research on various diseases. Their research has made it possible to control tuberculosis and leprosy.

(iii) The All India Institute of Medical Sciences (AIIMS) was established to give further impetus to advanced education and research in medicine.

(iv) It was given the responsibility of undergraduate and postgraduate courses in medicine. Colleges for undergraduate and postgraduate education in most branches of medicine, good research facilities and well- equipped hospitals are the significant features of this institute.

(v) The institute also provides medical treatment to the common people at nominal rates. It has established special colleges for training in nursing, and super-speciality centres for treatment of disorders of the heart, brain and eyes.

(vi) For further development of the medical field, the Medical Council of India was restructured in 1958 and was entrusted with the task of determining criteria for quality of medical education, its supervision and inspection.

(vii) These institutes have the responsibility of conducting research on various diseases, developing tests and standardisation of medicines.

Question 4.
Write a note on the curricular and co-curricular activities conducted in your school.
Answer:
(i) Languages – Our school motivates us to participate in theatres or plays organised on works of Shakespeare and Munshi Premchand. We also take part in elocution and poetry recitation competitions to enhance public speaking. Our school makes every child read the newspaper headlines from Marathi and English dailies in the auditorium turn wise.

(ii) Maths and Science – Scientific experiments mentioned in our textbook are practically performed by each of us under the supervision of our teachers. On Sundays, our Math teachers take special classes on Vedic Maths. Our school has also organised trips to Nehru Planetarium and ‘Jantar Mantar’ to give us an understanding of the astronomical aspects of science. Every year our school conducts Homi Bhabha scholarship exam. A display of the best 25 science projects is done in the school hall.

(iii) Social Studies – Field studies are taken up to explain to us the topography of Indian landscapes. The school library holds a large number of book and documentaries over world history trips to museums and historical places.

Class 9 History Chapter 5 Education Additional Important Questions and Answers

Choose the correct option from the given options and rewrite the statements:

Question 1.
In 1995, the _____ scheme was started to provide proper nourishment for the students.
(a) free ration
(b) foodgrain subsidy
(c) mid-day meal
(d) medical-check up
Answer:
(c) mid-day meal

Question 2.
_______was the first education minister of Independent India.
(a) Vallabhbhai Patel
(b) Maulana Abdul Kalam Azad
(c) Sachchidanand Sinha
(d) J.B.Kriplani
Answer:
(b) Maulana Abdul Kalam Azad

Question 3.
_____ recommended increased provision in government’s budget for expenditure on education of neglected sections like the SC/ST.
(a) University Education Commission
(b) Mudaliar Commission
(c) National Council of Educational Research and Training
(d) Kothari Commission
Answer:
(d) Kothari Commission

Question 4.
_______, a scientist with ISRO played an important role in providing satellite education.
(a) K. Kasturirangan
(b) Eknath Chitnis
(c) A. S. Kirankumar
(d) G. Madhavan Nair
Answer:
(b) Eknath Chitnis

Question 5.
In 1990 _____ started an audio-visual distance education programme through Akashwani and Doordarshan.
(a) ISRO
(b) NCERT
(c) IGNOU
(d) CSIR
Answer:
(c) IGNOU

Question 6.
The National Institute for Research in Mathematical and Physical Sciences’ in ______ was established in 1962.
(a) Chandigarh
(b) Kerala
(c) Karnataka
(d) Tamil Nadu
Answer:
(d) Tamil Nadu

Question 7.
India’s first IIT was setup at _______ at West Bengal in 1951.
(a) Kharagpur
(b) Midnapore
(c) Hooghly
(d) Howrah
Answer:
(a) Kharagpur

Identify and write the wrong pair in the following sets:

Question 1.
(1) TCS – obtained an American contract for software production.
(2) FTII – Systematic training in all aspects of film-making.
(3) C-DAC – developed Param – 8000
(4) IIM – imparting training in industrial design.
Answer:
Wrong Pair : IIM – imparting training in industrial design.

Question 2.
(1) The Advanced Centre for Treatment Research and Education in Cancer – Branch of Tata Memorial Centre
(2) AIIMS – advanced education and research in medicine.
(3) DPEP – Charts showing learning competencies upto Std.V
(4) National Policy on Education 1986 – Common core curriculum was framed for all states.
Answer:
Wrong Pair : DPEP – Charts showing learning competencies upto Std.

Question 3.
(1) National Institute of Design – Ahmedabad
(2) Maharashtra State Board of Secondary and Higher Secondary Education – Pune
(3) The National Institute for Research in the Mathematical and Physical Science – Delhi
(4) Indian Institute of Technology – West Bengal
Answer:
Wrong Pair: The National Institute for Research in the Mathematical and Physical Science – Delhi

Question 4.
(1) J.P. Naik – Kothari Commission
(2) P. Parthasarthy – Committee on Open University
(3) Sayyad Rauf – Drafted common state wide curriculum
(4) Dr. Sarvapalli Radhakrishnan – Director of NCERT.
Answer:
Wrong Pair : Dr. Sarvapalli Radhakrishnan Director of NCERT.

Question 5.
(1) Dave Committee – minimum levels of learning.
(2) The Art Department – designing workbooks and hand books.
(3) Kosbad project – Education of Adivasis
(4) Council of Scientific and Industrial Research – Promote scientific research.
Answer:
Wrong Pair : The Art Department – designing workbooks and hand books.

Question 6.
(1) MSCERT – Jeevan Shikshan
(2) Balbharati – Kishor
(3) The Maharashtra State Board of Secondary and Higher Secondary Education – Countrywide classroom.
(4) SITE – Satellite Education.
Answer:
Wrong Pair : The Maharashtra State Board of Secondary and Higher Secondary Education – Countrywide classroom

Question 7.
(1) Tarabai Modak – Kuranshalas
(2) Anutai Wagh – Kosbad Projects
(3) Eknath Chitnis – Education Minister
(4) R. H. Dave – Competency based Primary Education Curriculum.
Answer:
Wrong Pair: Eknath Chitnis – Education Minister

Complete the concept maps:

Question 1.
Objectives of Education:
Answer:

Question 2.
Central Council for Research in Indian Medicine and Homeopathy:
Answer:

Question 3.
Departments of the Indian Agricultural Research Institute:
Answer:

Question 4.
Role of Dave Committee:
Answer:

Question 5.
Features of the IIT
Answer:

Question 6.
IIMs in India
Answer:

Question 7.
Concept map of basic responsibilities of NCERT
Answer:

Write short notes:

Question 1.
AIIMS
Answer:
(i) The All India Institute of Medical Sciences (AIIMS) was established to give further impetus to advanced education and research in medicine.

(ii) It was given the responsibility of undergraduate and post-graduate courses in medicine.

(iii) Colleges for undergraduate and postgraduate education in most branches of medicine, good research facilities and well-equipped hospitals are the significant features of this institute.

(iv) The institute also provides medical treatment to the common people at nominal rates.

(v) It has established special colleges for training in nursing, and super-speciality centres for treatment of disorders of the heart, brain and eyes.

(vi) For further development of the medical field, the Medical Council of India was restructured in 1958 and was entrusted with the task of determining criteria for quality of medical education, its supervision and inspection.

Question 2.
Achievements of CSIR
Answer:
(i) In the post-independence period in 1950, the Council of Scientific and Industrial Research (CSIR) was established with the objective to promote scientific research in the country and to take the benefits of the research to all the people.

(ii) The achievements of the CSIR include making the ink used for marking voters’ fingers during elections, medicines for malaria, elephantiasis and tuberculosis, water purification technology, reduction in the time required for bamboo production.

(iii) It also used DNA fingerprinting for the first time in India, conducted a genetic study of the Adivasis of the Andamans and proved that those tribes are 60,000 years old and developed the earthquake early warning system.

(iv) It has also played an important role in the use of neem as a pesticide, use of turmeric for healing wounds and in the case of the patents for varieties of rice.

(v) The CSIR has prepared a digital encyclopedia of Indian traditional knowledge and made it available in eight international languages.

Question 3.
NCERT
Answer:
(i) National Council of Educational Research and Training (NCERT) was established in Delhi on the 1st of September 1961.

(ii) Its main objective is to help the Central Government in matters of school education in the context of a comprehensive policy and in implementing educational schemes. The NCERT was given the responsibility of educational research and development, training, extension, educational programmes, restructuring of school curriculum and textbooks.

(iii) It has played a central role in designing school curricula and textbooks with the cooperation of the Central Board of Secondary Education (CBSE). ’

(iv) It provides guidance and cooperation in the area of primary and secondary education to the state governments.

(v) It has been involved in designing workbooks and handbooks for teachers, in teacher training, in developing teaching-learning techniques and conducting talent search examinations at the national level.

Read the passage and answer the questions and answer the questions based on it.

Passage I

National Council of Educational Research and Training. This body was established in Delhi on the 1st of September 1961. Its main objective is to help the Central Government in matters of school education in the context of a comprehensive policy and in implementing educational schemes. The NCERT was given the responsibility of educational research and development, training, extension, educational programmes, restructuring of school curriculum and textbooks. It has played a central role in designing school curricula and textbooks with the cooperation of the Central Board of Secondary Education (CBSE). It provides guidance and cooperation in the area of primary and secondary education to the state governments. It has been involved in designing workbooks and handbooks for teachers, in teacher training, in developing teaching-learning techniques and conducting talent search examinations at the national level.
SCERTs were established in all States on the lines of the NCERT. The Maharashtra State Council of Educational ‘Research and Training was established in Pune, This institute performs various functions such as , improving the standard of primary education, in service training of teachers, training in the areas of syllabii and evaluation, vocational guidance for students after Std X and Std XII exams and other , educational functions This institute is known as the , academic authority. It brings out a periodical called Jeevan Sikshan. ‘

Question 1.
What was the main objective behind establishment of NCERT?
Answer:
The main objective behind establishment of NCERT is to help the central government in matters of school education in the context of a comprehensive policy and in implementing educational schemes.

Question 2.
SCERT was established only in Maharashtra State on the lines of the NCERT. Identify True or False.
Answer:
False.

Question 3.
State 4 research institutes in India.
Answer:
Following are the 4 research institutes in India:

• Council of Scientific & Industrial Research.
• Bhabha Atomic Research Centre.
• Indian Council of Medical Research.
• Indian Agricultural Research Institute.

Passage II

National Policy on Education 1986: According to this policy, certain changes of a fundamental nature were brought about in primary, secondary and higher , secondary education in keeping with the changing needs of society. Under this policy, a common core curriculum was framed for all States. The expectation , is that, by this means, all students in India will get equal educational opportunity. There is scope in the national curriculum for individual States to bring in flexibility in accordance with their cultural, geographical and historical needs.
The ‘Primary Education Curriculum 1988’ was prepared on the basis of the plan of action designed at the national level for the effective implementation of the National Policy on Education 1986. The competency based primary Education curriculum 1995: Even as the Primary Education Curriculum , 1988 was being implemented, a Committee was formed at the national level with Dr. R. H. Dave as its Chairman, to determine minimum levels of learning, The Dave as Committee developed charts of minimum , levels of learning in language, mathematics and environmental studies up to Std V. The charts showed the sequence of learning of the competencies meant for each class.
Use of a satellite: In 1975, India met with success in its attempt to use a satellite for the purpose of education, Eknath Chitnis, a scientist with ISRO, played an , important role in it.
SITE (Satellite Instructional Television Experiment) , was undertaken for educational purposes under the leadership of the Space Applications Centre at Ahmedabad. The concept of satellite education came , out of this experiment. America had helped India in , this programme. The programme helped to make provisionsforagoodstandardofeducationinruralareas.

Question 1.
What was done to implement the National Policy on Education 1986?
Answer:
For the effective implementation of National Policy on Education 1986, the Primary Education Curriculum 1988 was prepared on the basis of the action plan formulated at the National level.

Question 2.
How did the Dave committee determine the minimum levels of learning?
Answer:
To determine the minimum levels of learning the Dave committee developed charts in language, mathematics and environmental studies upto Std. V. Sequential learning competencies were depicted on these charts to set standards through levels of learning.

Question 3.
Who is your favourite educationist? State his/ her educational ideas which impacted the society.
Answer:
(i) My favourite educationist are Rabindranath Tagore, Dr. Annie Besant and Dr. Sarvapalli Radha Krishnan.

(ii) They all enlightened the society with their educational ideas and deeds. Dr. Annie Besant in particular was iconic.

(iii) Her ideas of education were imbibed with political freedom, women’s liberation and universal brotherhood. Her teachings of ‘Home Rule’ and ‘theosophy’ impacted our society during British Rule. She taught these ideas through political lectures to motivate the youth.

Answer the following questions in detail:

Question 1.
What does the District Primary Education Programme envisage?
Answer:
(i) In 1994, the District Primary Education Programme (DPEP) was started with the objective of universalisation of primary education. It was implemented in seven States including Maharashtra.

(ii) The plan envisaged 100% attendance in primary schools, arresting student drop-out, education for girls and for the physically handicapped.

(iii) It included programmes such as research on and evaluation of primary education, alternative education, creating societal awareness, etc.

Question 2.
State the contribution of Tarabai Modak in educating adivasis.
Answer:
(i) Tarabai Modak began work in the field of education in Bordi and Kosbad.
(ii) She started Anganwadis for Adivasi children.
(iii) She worked hard to bring in the Teaming by doing’ method, to start kuranshalas (meadow schools) and to spread vocational technical education.

Question 3.
What purpose did the Kosbad Project serve?
Answer:
(i) Anutai Wagh established an institution at Kosbad for the progress of Adivasis in Thane district.
(ii) It is known as the Kosbad Project.
(iii) She started creches, nurseries, primary schools, adult education classes, balsevika training schools, etc. for the education of Adivasis.

Question 4.
What was proposed by the Mudaliar Commission?
Answer:
(i) In 1952-53, the Mudaliar Commission was appointed.
(ii) At that time, the pattern of education consisted of 11 + 4 years for the first degree or of 11 + 1 + 3 years.
(iii) The Commission studied secondary education, the nature of the curriculum, medium of instruction, teaching methodology and made certain recommendations.
(iv) This Commission proposed the concept of Higher Secondary Education. However, it was found difficult to implement it all over the country.

Question 5.
State the recommendation of Kothari Commission.
Answer:
(i) The Kothari Commission recommended the 10+2+3 pattern for secondary, higher secondary and university education. This system was implemented from 1972.

(ii) The Commission also suggested a uniform national system of education, the inclusion of the mother tongue, Hindi and English in education, as well as continuing education, adult education, education by correspondence and open universities to make education trickle down to the lowest rungs of society.

(iii) It also recommended increased provision in the government’s budget for expenditure on education of neglected sections like the scheduled castes and tribes.

Question 6.
What do you know about the Education Board of your state?
Answer:
(i) The Maharashtra State Board of Secondary and Higher Secondary Education was established on the 1st of January 1966 at Pune.
(ii) This Board conducts the school leaving examinations of Std. X and Std. XII.
(iii) It also publishes a periodical called ‘Shikshan Sankraman’.

Question 7.
State the functions of MSCERT.
Answer:
(i) The Maharashtra State Council of Educational Research and Training was established in Pune.
(ii) This institute performs various functions such as improving the standard of primary education,
in-service training of teachers, training in the areas of syllabi and evaluation, vocational guidance for students after Std X and Std XII exams and other educational functions.

Question 8.
How did the concept of satellite education evolve in India?
Answer:
(i) SITE (Satellite Instructional Television Experiment) was undertaken for educational purposes under the leadership of the Space Applications Centre at Ahmedabad.
(ii) The concept of satellite education came out of this experiment. America had helped India in this programme.
(iii) The programme helped to make provisions for a good standard of education in rural areas.

Question 9.
Discuss the responsibilities of Indian Council for Medical Research.
Answer:
(i) Indian Council for Medical Research (ICMR) was established for conducting research in the medical field.
(ii) It was given the responsibility of cooperating with universities, medical colleges, government and non-government research institutes and giving them guidance and financial support for research activities.

Question 10.
Which institute works for advanced research in cancer?
Answer:
The Advanced Centre for Treatment, Research and Education in Cancer is a branch of the Tata Memorial Centre. It functions as the national centre for treatment, research and education in relation to cancer.

Observe the pictures/personality and write relevant information:

Question 1.

Answer:
(i) Kothari Commission recommended the 10+2+3 pattern for secondary, higher secondary and university education.
(ii) The objectives of Education were :

• Modernisation of Education.
• Social and national integration.
• Nurture of social, moral, spiritual values.
• Education and Productivity.
• Securing and strengthening of democracy.

(iii) The following are the other recommendations made by the Kothari commission:

• A uniform national system of education
• inclusion of mother tongue (along with Hindi and English)
• Continuing education
• Adult education
• Education by correspondence
• Open Universities.

Question 2.

Answer:
(1) The open university was established with the objective that the stream of education should make its way into every average household of the country.

(2) In 1974, the government appointed a committee under the chairmanship of P. Parthasarthy and open university took shape on 20th September 1985 in accordance with its recommendations and suggestions.
It was named after Prime Minister – Indira Gandhi.

(3) In 1990, IGNOU started an audio-visual distance education programme through Akashwani and Doordarshan.

(4) It provides facilities for education through 58 centres in the country and 41 centres in foreign countries.

Question 3.

Answer:
(1) CSIR was established with the objective to promote scientific research in the country and to take the benefits of the research to all the people.

(2) CSIR conducted research in fields like:

• Physics, chemistry, pharmaceuticals, food processing and mining

(3) The achievements of CSIR include:

• Making the ink used for marking voter’s fingers during elections
• Medicines for malaria, elephantiasis and tuberculosis
• water purifying technology
• DNA fingerprinting for the first time in India.

(4) CSIR has prepared a digital encylopoedia of Indian traditional knowledge and made it available in eight international languages.

Balbharti Maharashtra State Board Class 9 Geography Solutions Chapter 11 Transport and Communication Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Geography Solutions Chapter 11 Transport and Communication

Class 9 Geography Chapter 11 Transport and Communication Textbook Questions and Answers

1. Differentiate between:

(A) Railways and roadways
Answer:

Basis	Railways	Roadways
(1) Carrying Capacity	Carrying capacity is more	Carrying capacity is limited
(2) Distance	Suitable for long distances	Suitable for short distance
(3) Door to door service	Railway does not provide door to door service.	Roadways provide door to door service.
(4) Traffic	There is no problem of traffic jam on railways.	There is a problem of traffic jam on roadways.
(5) Pollution	Railways do not create a problem of air pollution.	Roadways create a problem of air pollution.

(B) Transportation and communication
Answer:

Basis	Transportation	Communication
(1) Meaning	Transportation is the movement of humans, animals and goods from one location to another.	Communication is the exchange of information, ideas and messages by speaking, writing or some other medium.
(2) Means	It is done through railways, roadways, waterways, airways and pipelines.	It is done through telephones, mobiles, video-conferencing, email and post etc.
(3) Threats	The threats like a traffic jams, accidents, noise pollution, air pollution are associated with transportation.	The threats like technical issues, cyber crimes, etc. are associated with the communication.

(C) Conventional and modern means of communication.
Answer:

Basis	Conventional means of Communication	Modem means of Communication
(1) Meaning	The means of communication – used since olden times – conventional means of communication.	The means of communication – used in modern times – modern means of communication.
(2) Examples	Letter, newspapers, radio, television.	Mobile phone, internet, etc.
(3) Interaction	May not facilitate the direct interaction between – sender and receivers of information.	Facilitates the direct interaction between – sender and the receivers of information.

2. Answer in detail:

Question 1.
‘Newspapers are used for communication’. Explain the statement.
Answer:

• The news related to economic events, politics, social issues, culture, education, etc. are published in newspapers.
• Newspapers arecheap means of communication. Through newspapers information gets spread to masses at a time.
• Newspapers are published in various languages.
• In this way, newspapers are used for communication.

Thus, newspapers are used for communication.

Question 2.
Explain how T.V. is a cheap means of communication.
Answer:

• Various programs, serials, etc. related to entertainment, social issues, culture, education, politics, economic events, sports, weather conditions, etc. are broadcasted on television.
• Through television the information is exchanged to masses at a time with high speed.
• Television can broadcast both audio and video for communication. In this way, television is a cheap means of communication.

Thus, TV is a cheap means of communication.

Question 3.
What types of communications can be done through mobiles?
Answer:

• Calling and SMS (Short message system) facilitates easy one-to-one communication, using mobiles anywhere and at any time.
• Video conferencing and applications like ‘Whatsapp’ allow one to communicate with many people simultaneously.
• Various functions like, money transfer, payment of bills, purchase of goods and services and online trading can be done using smart phones’ various apps like BHIM, SBI anywhere, etc.
• Internet and social media can also be accessed through mobile phones.

3. Name them on the basis of the given information:

Question 1.
Five cities with airways services in Maharashtra
Answer:
Mumbai, Pune, Nagpur, Kolhapur, Aurangabad, Nashik and Nanded.

Question 2.
Services available in post offices
Answer:

• Financial Services: Saving schemes, insurance services and mutual fund.
• Mail services: Speed post, postcard, parcel and courier.

Question 3.
National Highways near your area
Answer:

• Mumbai- Goa Highway (NH 66)
• Mumbai- Bangaluru highway (NH 04)
• Mumbai- Agra Highway (NH 08)
  Note: Answer may vary.

Question 4.
Ports along the coast of Maharashtra
Answer:

• Malvan
• Venture
• Vasai
• Dahanu
• Gharapuri

4. Identify the relation and match the columns making a chain

Group ‘A’	Group ‘B’	Group ‘C’
(1) Postal services	Roadways	Speed post
(2) Shivneri	World network of connected computers	Exchange of information
(3) Internet	Conventional means of communication	Comfortable journey
(4) RoRo transport	Railways	Energy, time and labour saving

Answer:

Group ‘A’	Group ‘B’	Group ‘C’
(1) Postal services	Conventional means of communication	Speed post.
(2) Shivneri	Roadways	Comfortable journey.
(3) Internet	World network of connected computers	Exchange of information.
(4) RoRo transport	Railways	Energy, time and labour saving.

5. Read the following maps and answer the questions:

Question 1.
In which region do you find a dense network of transport routes in the map?
Answer:
The central part of the district has dense network of transport routes.

Question 2.
How is the physiography of the region with dense network?
Answer:
The central part of the district has lower and medium elevation as compared to the Western part.

Question 3.
Which region has a sparse network of transport routes?
Answer:
The transport network is sparse in the Eastern part of the district.

Question 4.
How is the physiography of this region?
Answer:
The region with sparse network of transport . routes is comparatively of lower and medium elevations.

Question 5.
Look for the region lacking transport routes.
Answer:
The Western region lacks transport routes.

Question 6.
What kind of obstruction can you find there?
Answer:
Sahyadri Mountains and Shivsagar reservoir of Koyna dam are the obstructions found here.

Class 9 Geography Chapter 11 Transport and Communication Intext Questions and Answers

Let’s Recall

Complete the following table:

Transport	Means of	Used for
Route	Transport
Roadways	Rickshaw	Passengers
Roadways	Trucks
	Metro
Waterways
	Helicopter
Airways
	Submarine
Waterways		Freight
	Mules
Railways
Pipelines

Answer:

Transport	Means of Transport	Used for
Roadways	Rickshaw	Passengers
Roadways	Trucks	Goods
Railways	Metro	Passengers
Waterways	Cruise/Boats	Passengers
Airways	Helicopter	Passengers
Airways	Aeroplane	Passengers
Waterways	Submarine	Defence & Research
Waterways	Cargo-ship	Freight / Goods
Roadways	Mules	Goods
Railways	Cargo goods train	Goods
Pipelines	Pipes	Oil, Water and Gas

Can you tell?

We have given some specific conditions. In this context, tell with reasons which means of transport route will you take?

Question 1.
You have to reach Bhopal from Nagpur due to some emergency.
Answer:
Airways : As it is the fastest mode of transport.

Question 2.
You have to reach Kanyakumari carrying the message of cleanliness. There is no time limit for it.
Answer:
Roadways : Since roadways connect even the remotest places the message can reach to all persons.

Question 3.
Send the Alphonso mangoes from Konkan to Arab countries.
Answer:
Airways – Since mango is a perishable commodity, the fastest mode of transportation is used. ,

Question 4.
Indrayani variety of rice has to be exported from Pune to Cape Town of South Africa at low expenditure.
Answer:
In such conditions, we will choose waterways as a route and ship as a means of transport. Because rice is comparatively durable agricultural good in the given situation it has to be transported at low cost.

Question 5.
Large-scale production of vegetables in Nandurbar has taken place but is not fetching a good price. The Nagpur-Surat National Highway and the Surat-Bhusawal Railway line passes through the district.
Answer:
In a given situation, we will choose roadways and railways as a route and truck and goods’ ways/train respectively as a means of transport. Because the highway and railway line that pass through the district, connects the important towns and cities from the district.

Question 6.
You have to go to Singapore from your village/ town. You have 10 days to do the same.
Answer:
Roadway and Airways: I will first reach the nearest airport of a city by road and then take an Airway. It is the fastest mode of transport.

Can you tell?

Question 1.
Make a list of various means of communication you are aware of.
Answer:
Letters, radio, television, telephones, mobile phones, newspaper, internet, satellites etc. are the various means of communication.

Question 2.
How many of these do you actually use? Make a box around them.
Answer:

Question 3.
For what do you use them ?
Answer:
We use these means of communication to exchange important information, ideas, opinions etc. with friends, parents, relatives and teachers.

Question 4.
Who uses the remaining means ?
Answer:
The remaining means are used by parents, other relatives, businessmen from locality and government agencies.

Can you do it?

Observe the image and the instructions given on page 87 of the textbook and answer the following questions:

Question 1.
Which are the dates mentioned in the image?
Answer:
The dates mentioned are 15/5/2017 and 19/5/2017

Question 2.
What does the information in the image tell?
Answer:
The image informs that the person’s email account has been hacked. He cannot access his important files as they have been encrypted and to recover his files, he will have to pay a certain amount to the hacker.

Question 3.
What is the price asked for recovering the files and in what currency?
Answer:
The price asked for recovering the files is 300 US dollars in bitcoins.

Question 4.
What is the type of crime here?
Answer:
This is a cyber crime.

Give it a try
Think about the transport issues you come across during your journeys. Write the innovative changes you would suggest in the transport routes or means in your copy.

Question 1.
Congested city roads and Pollution
Answer:
Electric cars which are smaller and smarter.

Question 2.
Time-consuming travel
Answer:
Dedicated bus corridors, carpooling, more number of Expressways.

Give it a try

Question 1.
Look for the other uses of artificial satellites? Try to understand how they are related to your daily life?
Answer:
(a) The other uses of artificial satellites are as follows:

• Studying about other planets.
• Live broadcasting of a program/event from any region of the earth.
• Studying the resources on the earth’s surface.
• Regional planning.
• Planning defense strategies.
• Forecasting weather etc.

(b) The artificial satellites are directly or indirectly related to personal, social, educational, economic, cultural, political aspects in everyone’s daily life. For eg. through artificial satellites, one can enjoy a live program like award functions/cricket match, etc. on television.

Class 9 Geography Chapter 11 Transport and Communication Additional Important Questions and Answers

Complete the statement choosing the correct option from the bracket:

Question 1.
The price of the goods can be kept low if the transportation is ………….. .
(a) feasible
(b) expensive
(c) costly
(d) affordable
Answer:
(d) affordable

Question 2.
…………… growth gets a boost due to transportation.
(a) Physical
(b) Culture
(c) Economic
(d) Political
Answer:
(c) Economic

Question 3.
Freight transport through …………… is costlier than railways.
(a) trucks
(b) horses
(c) bullock-cart
(d) yak
Answer:
(a) trucks

Question 4.
The western part of Satara district is occupied by the …………… of its off shoots.
(a) Vindhyas
(b) Satpudas
(c) Sahyadris
(d) Aravallis
Answer:
(c) Sahyadris

Question 5.
The use of RORO (Roll on Roll off) services started in …………… railways in India.
(a) Goa
(b) Maharashtra
(c) Konkan
(d) Pune
Answer:
(c) Konkan

Question 6.
In the modem age, man-made …………… are an important and effective means of communication.
(a) planets
(b) asteroids
(c) satellites
(d) rockets
Answer:
(c) satellites

Question 7.
Satellite images obtained by …………… facilitate study of resources on Earth’s surface and help in regional planning.
(a) GPS
(b) radio
(c) remote sensing1
(d) drones
Answer:
(c) remote sensing

Question 8.
Communication is not just limited to talking on telephones or sending messages but …………… is also available now.
(a) tele-calling
(b) STD-Calling
(c) video-calling
(d) Local-calling
Answer:
(c) Video-calling

Question 9.
There is a correlation between transport routes and the …………… of region.
(a) soil type
(b) rainfall
(c) climate
(d) physiography2
Answer:
(d) physiography

Question 10.
Transport facilities can develop well in …………… region.
(a) mountainous
(b) plain
(c) forest
(d) plateau
Answer:
(b) plain

Question 11.
Shiv sagar reservoir of the …………… dam is located in the Satara district.
(a) Ram Krishna
(b) Bhakra-Nagal
(c) Koyna
(d) Tehri
Answer:
(c) Koyna

Question 12.
The …………… part of Satara district has a dense transport network.
(a) Western
(b) Central
(c) Eastern
(d) Southern
Answer:
(b) central.

Write answers in one sentence

Question 1.
What is transportation?
Answer:
The movement of goods and people from one place to another is called transportation.

Question 2.
Which are the different kinds of transport routes?
Answer:
Roadways, railways, waterways, airways and pipelines are the different kinds of transport routes.*

Question 3.
For what reasons does a region become devoid of any transport route?
Answer:
Due to mountains, valleys, rivers, reservoirs

1. remote sensing – obtaining information regarding any place or an object without actually establishing direct contact with it is called remote sensing.
2. physiography – nature and slope of land and undulating1 topography2 a region becomes devoid of any transport route.

Question 4.
Why does a dense network of transportation develop in some regions?
Answer:
A dense network of transportation develops in some regions due to lower and medium elevation, plains, flat and regular topography, etc.

Question 5.
What does Ro-Ro transport stand for?
Answer:
Ro-Ro transport is Roll-on, Roll-off transport.

Question 6.
Why was the Ro-Ro transport introduced?
Answer:
Freight transport by trucks is costlier than railways, so as a solution the Ro-Ro transport has been introduced.

Question 7.
What are Cyber Crimes?
Answer:
Crimes like website/email hacking, theft of information, economic frauds, wars, terrorism, etc. that are committed by using computers and internet are called ‘cyber crimes’.

Question 8.
How are BHIM app, SBI anywhere app useful?
Answer:
BHIM App, SBI Anywhere app, helps us to pay various bills, sell, buy and carry out various transactions through mobile phones.

Question 9.
Where was Ro-Ro service introduced for the first time in India?
Answer:
Ro-Ro service, was introduced for the first time in India by the Konkan Railway.

Give Reasons:

Question 1.
The development of transportation is an indicator of the development of that region.
Answer:

• With development of transportation there is an increase in the movement of freight and passengers of that region.
• Development of transportation develops industries and markets.
• Per capita Income (PCI) and Gross Domestic product (GDP) increases leading to economic growth.
• So it is said that development of transportation is an indicator of the development of that region.

Question 2.
Green Corridor saves many lives.
Answer:

1. Green Corridor is a route cleared of all traffic obstacles, so that a dead person’s (donor’s) organs can be speedily transported to the receiver
2. It is called ‘green’ corridor because the traffic lights are turned green for the speedy movement of the vehicle carrying the organ.
3. Thus, Green Corridor saves many lives.

Question 3.
Ro-Ro Transport helps to reduce cost of transport.
Answer:

• In Ro-Ro (Roll-on, Roll-off) transport, the trucks loaded with goods are transported to desired railway stations through a goods train.
• From there the trucks take the goods ahead to the desired locations.
• Ro-Ro transport helps to reduce the cost of transport as railways are used for the part of the distance.
• Ro-Ro transport also reduces cost of fuel and pollution caused by trucks.

Answer in details:

Question 1.
Give the Importance of transportation.
Answer:
Transportation is a basic infrastructure.
The development of transportation infrastructure is an indicator of the development of the particular region or a country.

The importance of transportation can be explained with the help of the following points :

• Extending trade and network.
• Rapid industrialisation.
• Availability of employment opportunities.
• Regional connectivity.
• Utility of the site.
• Overcoming scarcity (deficit).
• Decreasing regional imbalance1.
• Tourism development.

Question 2.
Give the Importance of a communication system.
Answer:

• Communication or exchange of information is an important process in today’s era. Communication is basic infrastructure.
• Man-made satellites are an important and effective means of communication.
• The exchange of messages through mobiles, watching progammes on television, getting updates of climatic condition etc. is possible simultaneously through man-made satellites.
• Satellite images obtained by remote sensing facilitate study of resources on earth’s surface and helps in regional planning.
• Many apps which can be used on mobile phones have been developed for the same.
• For e.g. BHIM app, SBI anywhere, etc. By using these communicational facilities, we can pay various bills, sell and buy goods and services and carry other such transactions.
• Nowadays, communication is not just limited to talking on telephone or sending messages but also video calling is available now.

Explain:

Question 1.
Factors to be kept in mind while selecting the route way and the means of transport.
Answer:
The following factors should be kept in mind while selecting the route way and means of transport:

• Distance
• Duration
• Cost
• Time
• Products
• Climate
• Market
• Routes and means
• Physiography

Question 2.
Importance of Transportation.
Answer:

1. The development of transportation infrastructure is an indicator of the development of the country or that region.
2. The reforms in the transport sector enhance the dynamicity of freight and passengers in a region.
3. Industries and markets develop. Economic growth gets a boost. Per Capita Income (PCI) and Gross Domestic Product (GDP) increases too.
4. Transportation leads to –
   • Extending trade and network
   • Rapid industrialisation
   • Availability of employment opportunities
   • Regional connectivity
   • Utility of the site
   • Overcoming scarcity (weakness)
   • The decrease in regional imbalance
   • Tourism development

Question 3.
Importance of man-made satellites.
Answer:

• In the modern age, man-made satellites are an important and effective means of communication.
• The exchange of messages through mobiles, watching programmes on TV and getting updated information regarding climatic conditions is possible simultaneously through man-made satellites.
• Satellite images obtained by remote sensing facilitate study of resources on earth’s surface and help in regional planning.

Thus, man-made satellites are important.

Question 4.
Green Corridor.
Answer:

• It happens that sometimes a dead person has donated his organs.
• In such cases, such organs need to be transported from the donor’s location to the receiver urgently.
• For this organ transfer, all types of routes are cleared of all obstacles. This is called Green Corridor.
• Consequently, this kind of rapid transport corridor can save the receiver’s life.

Question 5.
Threats associated with means of communication.
Answer:

• Besides facilities, means of communication have a few threats associated with them.
• Many crimes are happening through the internet like website/email hacking, fraud, theft, attack, wars and terrorism. Possibilities of threats like theft of information, economic frauds, attacking important websites etc. arise.
• Therefore, one should take precautions while using social networks.
• One should not reveal personal information before ensuring safety.
• One should not put any sensitive information or personal information on social networking sites, blogs, etc.

Balbharti Maharashtra State Board Class 9 Geography Solutions Chapter 9 Trade Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Geography Solutions Chapter 9 Trade

Class 9 Geography Chapter 9 Trade Textbook Questions and Answers

1. Classify the trade taking place between the following regions:

(1) Maharashtra and Punjab
(2) India and Japan
(3) Lasalgaon and Pune
(4) China and Canada
(5) India and European Union
Answer:
(1) Internal trade
(2) International trade
(3) Internal trade
(4) International trade
(5) International trade

2. Write the correct word- Import or Export for the following :

(1) India buys crude oil from the Middle-East Asian countries.
(2) Wheat is sent to Asian countries from Canada.
(3) Japan sends machine parts to APEC countries.
Answer:
(1) Import
(2) Export
(3) Export

3. Correct and rewrite the wrong statements:

(A) India is a self-sufficient country.
Answer:
India is not a self-sufficient country as it depends on other countries for crude oil, machinery, etc.

(B) The place where there is excess production does not have demand for those products.
Answer:
The place where there is excess production more creates ‘supply’ for those products.

(C) International trade processes are easier than local trade.
Answer:
International trade processes are relatively more difficult than local trade.

4. Identify and write the type of trade:

(A) Srushti brought sugar from the grocery shop.
Answer:
Retail Trade.

(B) The traders from Surat bought cotton from the farmers of Maharashtra.
Answer:
Wholesale Trade.

(C) Sameer has exported pomegranates from his farms to Australia.
Answer:
International Trade.

(D) Sadabhau bought 10 sacks of wheat and 5 sacks of rice from Market Yard for selling in his own shop.
Answer:
Wholesale Trade.

5. Write answers in short:

(A) Create a flowchart showing the types of trade
Answer:
Trade refers to buying and selling for fulfilling each other’s needs.
Trade is divided into two categories:

• On the basis of the quantity of goods.
• On the basis of the extent of trade region.
  

(B) Explain the difference in types of balances of trade.
Answer:
The difference between the import and export values of a country in a specific period is called balance of trade.
The different types of balance of trade are:

• Unfavourable Balance of Trade: When the value of imports is more than the value of exports, it is called ‘Unfavourable Balance of Trade.’
  
• Favourable Balance of Trade: When the value of exports is more than the value of imports, it is called ‘Favourable Balance of Trade.’
• Balanced Balance of Trade: When the value of exports and imports is almost the same, it is called ‘Balanced Balance of Trade.’
  

(C) State the objectives of WTO.
Answer:
WTO stands for World Trade Organisation. The main objectives of WTO are:

• To provide platform for negotiations in international trade.
• To handle the differences related to trade.
• To monitor the trade policies of member states.
• To provide a technological assistance and training to developing countries.

(D) What is the difference between the OPEC and APEC in terms of their functions?
Answer:

OPEC	APEC
(i) OPEC stands for Organisation of Petroleum Exporting Countries.	APEC stands for Asia-Pacific Economic Cooperation (APEC).
(ii) OPEC is the organisation of oil-producing and exporting countries.	APEC is the regional organisation of the countries in the Asia Pacific region.
(iii) It keeps control over the international trade of crude oil.	It promotes free trade and economic cooperation among the member countries.
(iv) It keeps control on the rates of crude oil production among member states.	It promotes regional and technical cooperation among members.

(E) Write the functions of the important trade organisations in Asia.
Answer:
Important trade organisations in Asia are:
Association of South East Asian Nations (ASEAN)

• To expand social and cultural harmony along with economic growth in South East Asia.
• To promote regional peace.
• To promote tax waivers for trade growth in member states.

Asia Pacific Economic Co-operation (APEC)

• To promote free trade and economic co¬operation in the Asia-Pacific Ocean region.
• To promote regional and technical co-operation among members.

(F) What is the importance of marketing from farmers ‘point of view’?
Answer:
Marketing involves price of a commodity, its sales promotion, its advertising and its proper distribution.

• In the traditional marketing system, the farmers used to sell their products in the local market at whatever price available. This is because the fruits and vegetables are perishable, so the farmers used to incur losses,
• However, the modem farmers have acquired skills in marketing. They are aware of the trends in the market.
• They produce food grains and fruits as per the international standards.
• They undertake grading and packaging of their products. The presentation of any product has become indispensable now.
• They advertise the quality of their product and keep the same for sale, along with samples, in the mall.
• These commercial-minded farmers contact the supermarkets and exporters through the internet.
• As a result, their products are sold at a higher price in the malls. They also fetch a good price from exports.
• Thus marketing is as important as the cultivation of crops. By following modem marketing techniques, the income of the farmers can increase and that can improve their standard of living.

6. In the following table, export-import of some countries in the year 2014-15 is given in million U.S. dollars. Make a compound bar graph of the given statistical information. Read the bar diagram carefully and comment upon the balance of payments of the respective countries.

Country	Export	Import
China	2143	1960
India	272	380
Brazil	190	241
USA	1510	2380

Answer:

• China has a balance of trade.
• India, USA and Brazil have an unfavourable balance of trade.
• The volume of international trade of China and the USA is maximum.
• International trade of India and Brazil is insignificant.
• International trade is dominated by China and the USA.

Class 9 Geography Chapter 9 Trade Intext Questions and Answers

Make friends with maps!

Find out the names of the member-states of the following organisation with the help of internet. Show these member nations on the outline map given in the figure using different colour for each organisation.
(1) OPEC member – countries
(2) SAARC member – countries
Answer:

(1) OPEC member- countries
Republic of Iran, Iraq, Kuwait, Saudi Arabia, Venezuela, Qatar, Libya, The United Arab Emirates, Algeria, Nigeria, Ecuador, Gabon, Angola, Equatorial Guinea (2017).

(2) SAARC countries
Afghanistan, Bangladesh, Bhutan, India, Nepal, Maldives, Pakistan, Sri Lanka.

Can you tell?

With a lot of hard work Dhondiba used to grow best varieties of vegetables and other agricultural commodities. But his products could not fetch a good price. His college-going son, saw this situation and he first packed the commodities nicely after cleaning them neatly. Then he contacted the supermarket in the town. Looking at the quality of his product, they advertised the farm product and kept it for sale in the mall. Today, Dhondiba’s commodities are being sold for higher prices than before.

Question 1.
Why did Dhondiba’s commodities start getting higher prices?
Answer:
For any commodity to be accepted in the market and fetch a better price, it should have an appropriate presentation. The price of the commodity is determined by its quality, its grading and how it is presented before the customer. Dhondiba’s son who was educated, realized this and took the necessary actions in time which helped Dhondiba to fetch better price.

Question 2.
What did Dhondiba’s son do for that?
Answer:
Dhondiba’s college-going son realised that the agricultural commodities sold by his father lacked proper presentation and marketing. So he adopted modem marketing practices like cleaned the commodities well and packed them nicely. He then got in touch with the supermarket in the town. The supermarket was impressed with the quality of Dhondiba’s products, they advertised the farm product and kept it for sale in the mall. Dhondiba’s commodities were in great demand and sold at higher prices than before.

Question 3.
What measures would you suggest to the farmers near you so that then commodities can fetch a good price?
Answer:
Some of the measures that we can suggest to the farmers so that then commodities can fetch a better price are:

• Clean their vegetables, fruits well.
• Grade the commodities.
• Pack them nicely.
• Advertise their farm products.
• Sell it in the market.

Give it a try.

Obtain information regarding the bilateral trade between India and Japan for any financial year and the value of the export and import of major goods. Write two paragraphs on it.
Answer:
India’s Trade with Japan (April 2016-Jan 2017)

Exports	₹ 20,000 Cr
Imports	₹ 55,000 Cr
Trade Balance	₹ 35,000 Cr

This shows that India has an Unfavourable Balance of Trade with Japan, in which the value of Imports is more than the value of Exports.

India’s major exports to Japan
Petroleum products, Iron ore, Fish Meat (including lobsters, crabs, shrimps etc) Motor parts, Insecticides, Fungicides, Turbo-jets, Gas turbines etc.

India’s major imports from Japan
Iron and Steel Products, Transport Equipments, Plastic, Machinery items like Drilling Platforms, Floating Cranes, Printing machinery etc.

Think about it.

Question 1.
What will happen if there is only one currency used in the whole world?
Answer:
The European Union is an example, which has one common currency ‘Euro’.
Advantages of having one common currency. If the whole world has one common currency, international trade will become much easier and move will increase international trade also. Disadvantages of having one common currency.

If all the countries adopt one common currency, there will be one uniform policy. No country will be able to have their own monetary and fiscal policy.

Find out.

You get products from other places. Similarly, find out where the special products/items made in your village/city are sent?
Answer:
I live in Mumbai.
Special products exported from Mumbai and where they are sent:
Cotton textiles – China, USA
Commercial vehicles – Mexico, South Africa

Try this.

(I) Obtain the following information.

Question 1.
Make a list of commodities which you use daily.
Answer:
Toothpaste, powder, tea, hair oil, biscuits, food grains.

Question 2.
Who uses these commodities?
Answer:
We as consumers use these commodities.

Question 3.
Write the sources of supplies of these commodities.
Answer:
Producers are the source of supplies.

Question 4.
From where do you buy these commodities?
Answer:
Retail Shop.

Question 5.
What do you call the act of buying and selling?
Answer:
Trade.

Question 6.
What does the shopkeeper take in lieu of the commodity?
Answer:
The shopkeeper takes money (currency) in lieu of the commodity.

(II) A list of few goods you regularly use at home, is given here. Write the names of the product, the producer company’s name and the source of information in front of it.

Goods that Name of the you use	Name of the company	Source of information
Colgate Toothpaste	Palmolive	T.V. advertisement
Coffee Nescafe	Nestle	T.V. advertisement
Bathing Soap Lux	Unilever	T.V. advertisement
Hair Oil Parachute	Marica India	T.V. advertisement
Biscuits Parle G	Parle Products	T.V. advertisement

 Choice may vary from consumer to consumer.

(F) Use your brain power! (Textbook Page no. 70) Suppose you are a trader and you want to sell your product in other states of the country and also in other parts of the world

Question 1.
Which of these is an easier way of doing trade?
Answer:
To sell the product in other states of the country, domestic or internal trade is easier. To sell the product in other parts of the world, international trade, i.e. export trade is done

Question 2.
Which trade can bring some limitations?
Answer:
International trade.

Question 3.
Look for reasons behind them
Answer:
Factors like economy of the country, government policis, markets, laws, judicial system, currency, language and political relation between the two trading countries can bring limitations in international trade.

Class 9 Geography Chapter 9 Trade Additional Important Questions and Answers

Complete the statements choosing a colored option from the bracket:

Question 1.
…………………. refers to buying and selling goods and services to fulfill each other’s needs.
(a) Trade
(b) Business
(c) Labelling
(d) Branding
Answer:
(a) Trade

Question 2.
When there is buying and selling of goods it is called ………………….. trade.
(a) invisible
(b) visible
(c) impossible
(d) possible
Answer:
(b) visible

Question 3.
Buying and selling in large quantities is called ………………….. trade.
(a) wholesale
(b) retail
(c) invisible
(d) none of these
Answer:
(a) wholesale

Question 4.
………………….. trade refers to buying and selling in small quantities.
(a) Invisible
(b) Retail
(c) Wholesale
(d) None of these
Answer:
(b) Retail

Question 5.
………………….. trade means buying goods and services from another country
(a) Export
(b) Retail
(c) Wholesale
(d) Import
Answer:
(d) Import

Question 6.
When the value of imports is more than the value of exports it is called ………………….. balance of trade.
(a) favourable
(b) unfavorable
(c) balanced
(d) possible
Answer:
(b) unfavorable

Question 7.
………………….. was formed to control the international trade of crude oil.
(a) OPEC
(b) APEC
(c) ASEAN
(d) WTO
Answer:
(a) OPEC

Question 8.
BRICS stands for …………………. .
(a) Brazil, Russia, Indonesia, China and Sudan
(b) Belgium, Rome, India, China and South Africa
(c) Brazil, Russia, India, China and South Africa
Answer:
(b) Brazil, Russia, India, China and South Africa

Question 9.
………………….. was formed to establish an integrated market2 in member nations in Europe.
(a) EU
(b) ASEAN
(c) BRICS
(d) OPEC
Answer:
(a) EU

Question 10.
………………….. trade means the exchange of goods and services of one country with other countries.
(a) Retail
(b) Wholesale
(c) International
(d) None of these
Answer:
(c) International

Match the following:

Question 1.

Column ‘A’	Column ‘B’
(1) WTO	(a) Brazil, Russia, India, China and South Africa.
(2) BRICS	(b) World Trade Organisation.
(3) Favourable balance of trade	(c) Value of exports is more than value of imports.

Answer:
(1 – b),
(2 – a),
(3 – c)

Question 2.

International organisations	Headquarters
(1) EU (2) WTO (3) SAARC	(a)  Kathmandu (Nepal) (b) Jakarta (Indonesia) (c)  Geneva (Switzerland) (d)  Brussels (Belgium)

Answer:
(1 – d),
(2 – c),
(3 – a)

Question 3.

Column ‘A’	Column ‘B’
(1) OPEC	(a) Expanding social and cultural harmony in South East Asia.
(2) APEC	(b) Controlling international trade of crude oil.
(3) ASEAN	(c) Free trade in Asia- Pacific Ocean region.
	(d) When value of imports is more than the value of exports.

Answer:
(1 – b),
(2 – c),
(3 -a)

Write answers in one sentence each:

Question 1.
What do you mean by trade?
Answer:
Trade refers to buying and selling of goods and services to fulfil each other’s needs.

Question 2.
What is visible trade3?
Answer:
When there is buying and selling of goods it is known as visible trade.

Question 3.
What is invisible trade4?
Answer:
When there is exchange of services, it is known as invisible trade.

Question 4.
Who conducts wholesale trade?
Answer:
Wholesale trade is conducted by wholesalers.

Question 5.
What do you mean by domestic trade?
Answer:
Domestic or internal trade is the trade that takes place within the geographical boundaries of one country. For eg. Trade between Maharashtra and Gujarat.

Question 6.
What is international trade?
Answer:
International trade means buying and selling of goods and services between two or more countries. For example, trade between USA and India.

Question 7.
What do you mean by import trade?
Answer:
Import trade means buying goods and services from another country. For eg. India imports crude oil from Kuwait.

Question 8.
What is export trade?
Answer:
When country sells its goods and services to another country, it is called export trade. For eg. India exports rice to USA.

Question 9.
What is balance of trade?
Answer:
The difference between the import and export values of a country in a specific period is called balance of trade.

Question 10.
What do you mean by unfavourable balance of trade?
Answer:
When the value of imports is more than the value of exports it is called unfavourable balance of trade.

Question 11.
What is favourable balance of trade?
Answer:
When the value of exports is more than the value of imports it is called favourable balance of trade.

Question 12.
What is balanced balance of trade?
Answer:
When the value of exports and imports is almost same, it is called balanced balance of trade.

Question 13.
What is WTO?
Answer:
WTO stands for World Trade Organisation.

Question 14.
What does EU stand for?
Answer:
EU stands for European Union which comprises of 28 European countries.

Question 15.
What does OPEC stand for?
Answer:
OPEC stands for Organisation of Petroleum Exporting Countries.

Question 16.
Give extended form of.
(i) SAARC
(ii) ASEAN
(iii) APEC
(iv) BRICS
Answer:
(i) SAARC – South Asian Association for Regional Co-operation.
(ii) ASEAN – Association of South-East Asian Nations.
(iii) APEC – Asia-Pacific Economic Co-operation.
(iv) BRICS – Brazil, Russia, India, China and South Africa.

Some economic organisations of the world

Give Reason

Question 1.
Some international economic organisations were set up
Answer:
Some international economic organisations were set up:

• To smoothen the process of trade between countries of different economic status.
• To facilitate the growth of international trade.

Question 2.
The Consumer Protection Act been enacted
Answer:

1. The Consumer Protection Act has been enacted to protect the consumers from fraudulent traders supplying sub-standard products.
2. Many advertisements make exaggerated statements to cheat the consumers and these advertisements use incorrect information.
3. The Consumer Protection Act empowers consumers with their rights and duties. Consumers have right to complain and seek redressal.

Explain the following:

Question 1.
What do you mean by wholesale trade?
Answer:

• In wholesale trade, the traders buy goods on a large scale from industrialists, farmers, etc. For eg. the orchard owners of mangoes or oranges sell their entire production to wholesale traders.
• The wholesalers in turn sell these commodities to the retail traders.

Question 2.
What is retail trade?
Answer:

• The process of buying in small quantities from wholesalers and selling in small quantities to the consumers is called retail trade.
• For eg. the shopkeepers selling food grains, vegetable vendors in markets.

Question 3.
What is marketing?
Answer:

• An invisible flow develops when a product goes from producer1 to consumer.
• The commercial functions involved in this flow are collectively called marketing.

Answer in brief :

Question 1.
Explain the importance of trade.
Answer:
The importance of trade are:

• Trade is an important economic activity.
• The economic life of people is dependent on each other.
• No region or country is self-sufficient.
• Trade between two regions is necessary to fulfill the needs of the people.
• As each region has different geographical conditions, each region produces specific commodities.

Question 2.
What is barter trade?
Answer:

• In ancient and medieval periods, trade was done through barter system.
• Barter trade means exchange of commodities for commodities without using money, is a medium.
• For eg. grains in exchange of work done or salt exchanged for oil.
• But it created the problem of estimating the price of a commodity correctly. As a result, currency started being used.

Question 3.
Mention the functions of the European Union.
Answer:
The main functions of the European Union are:

• Establishing an integrated market in member nations amongst Europe.
• Free flow of goods, services and capital in Europe.
• Custom duties have been cancelled on exchange of goods within members.
• Common ‘Euro’ currency for the member countries.

Question 4.
Which factors influence trade?
Answer:
The factors which influence trade are:

• Factors like the economy of the country, government policies, markets, laws, judicial systems, currency, language, etc. influence trade.
• Political relations between two countries also influence trade between them.

Balbharti Maharashtra State Board Class 9 Science Solutions Chapter 3 Current Electricity Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Science Solutions Chapter 3 Current Electricity

Class 9 Science Chapter 3 Current Electricity Textbook Questions and Answers

1. The accompanying figure shows some electrical appliances connected in a circuit in a house. Answer the following questions.

A. By which method are the appliances connected?
Answer:
Appliances are connected in parallel.

B. What must be the potential difference across individual appliances?
Answer:
The potential difference across all appliances is same in parallel connection.

C. Will the current passing through each appliance be the same? Justify your answer.
Answer:
No, as every appliance has a different load (resistance), the current flowing through each appliance will be different.

D. Why are the domestic appliances connected in this way?
Answer:
The domestic appliances are connected in parallel as the potential difference remains same.

E. If the T.V. stops working, will the other appliances also stop working? Explain your answer.
Answer:
No, the other devices will not stop working as the current flowing through them is along different paths.

2. The following figure shows the symbols for components used in the accompanying electrical circuit.

Which law can you prove with the help of the above circuit?
Answer:

(b) This circuit can be used to prove Ohm’s law.
(c) V = 1R is the expression of Ohm’s law

3. Umesh has two bulbs having resistances of 15 W and 30 W. He wants to connect them in a circuit, but if he connects them one at a time the filament gets burnt. Answer the following.

A. Which method should he use to connect the bulbs?
B. What are the characteristics of this way of connecting the bulbs depending on the answer of A above?
C. What will be the effective resistance in the above circuit?

4. The following table shows current in Amperes and potential difference in Volts.

a. Find the average resistance.
b. What will be the nature of the graph between the current and potential difference? (Do not draw a graph.)
c. Which law will the graph prove? Explain the law.

5. Match the pairs

‘A’ Group – ‘B’ Group
1. Free electrons – a. V/ R
2. Current – b. Increases the resistance in the circuit
3. Resistivity – c. Weakly attached
4. Resistances in series – d. VA/LI

6. The resistance of a conductor of length x is r. If its area of crosssection is a, what is its resistivity? What is its unit?

7. Resistances R₁, R₂, R₃ and R₄ are connected as shown in the figure. S₁ and S₂ are two keys. Discuss the current flowing in the circuit in the following cases.

a. Both S₁ and S₂ are closed.
b. Both S₁ and S₂ are open.
c. S₁ is closed but S₂ is open.
Answer:
(a) When both S₁ and S₂ are dosed, the effective resistance of the circuit decreases and hence, current will increase.
(b) When both S₁ and S₂ are open, the effective resistance of the rircuit increases and hence, current will decrease.
(c) When S₂ is closed and S₂ is open, the effective resistance of the tircuit decreases and hence current will increase. [Current will be more than case (b) but less than in case (a)]

8. Three resistances x₁, x₂ and x₃ are connected in a circuit in different ways. x is the effective resistance. The properties observed for these different ways of connecting x₁, x₂ and x₃ are given below. Write the way in which they are connected in each case. (I-current, V-potential difference, x-effective resistance)

a. Current I flows through x₁, x₂ and x₃
b. x is larger than x₁, x₂ and x₃
c. x is smaller than x₁, x₂ and x₃
d. The potential difference across x₁, x₂and x₃ is the same
e. x = x₁ + x₂ + x₃
\(\text { f. } x=\frac{1}{\frac{1}{x_{1}}+\frac{1}{x_{2}}+\frac{1}{x_{3}}}\)

9. Solve the following problems.

A. The resistance of a 1m long nichrome wire is 6Ω. If we reduce the length of the wire to 70 cm. what will its resistance be? (Answer : 4.2Ω)
Answer:
The resistance of 70cm wire will be 4.2 Ω

B. When two resistors are connected in series, their effective resistance is 80Ω. When they are connected in parallel, their effective resistance is 20Ω. What are the values of the two resistances? (Answer : 40Ω, 40Ω)
Answer:
The values of the two resistances R₁ and R₂ are 40Ω and 40Ω.

C. If a charge of 420 C flows through a conducting wire in 5 minutes what is the value of the current? (Answer : 1.4 A)
Answer:
Given: Electric charge (Q) = 420 C
Time (t) = 5 min = 5 x 60
= 300 sec.
To find: Electric current (1) = ?
Formula:
\(I=\frac{Q}{t}\)
Solution:
\(I=\frac{Q}{t}\)
The current in the circuit is 1.4 A.

Class 9 Science Chapter 3 Current Electricity Intext Questions and Answers

Can you recall?

Question 1.
You must have seen a waterfall. Which way does the water flow?
Answer:
Water flows from a certain height of a mountain towards the ground.

Question 2.
Material: Copper and aluminium wires, glass rod, rubber.
Make connection as shown in figure 3.8. First connect a copper wire between points A and B and measure the current in the circuit. Then in place of the copper wire, connect the aluminium wire, glass rod, rubber, etc one at a time and measure the current each time. Compare the values of the current in different cases.

Also take different metal strips (Iron, Copper, Zinc, and Aluminium) and connect it in slot AB. Now observe the difference in the resistance using Ohm meter.
Answer:
When copper and aluminium wires are connected to the circuit, current flows through it, as both are good conductors of electricity. When glass rod or rubber was connected to the circuit, current does not flow through it, as both are bad conductors of electricity.

Copper displays lowest resistance while the resistance increases with aluminium, zinc and iron respectively.

Question 3.
Set up the experiment as shown in figure. Then remove the clamp from the rubber tube.

(a) What happens when the clamp is removed?
Answer:
When the clamp is removed, water flows from higher level to lower level.

(b) Does the water stop flowing? Why?
Answer:
Yes, the water stops flowing. This happens when the level of water becomes equal in both the bottles, i.e., there is no difference in the water levels.

(c) What will you do to keep the water flowing for a longer duration?
Answer:
The difference in the water level has to be maintained till that time. The difference must never be zero.

Question 4.
Point out the mistakes in the figure below:

Answer:
A: Wire is broken at the negative terminal. Bulb will not glow as the circuit is incomplete.
B: Wire is disconnected at the negative terminal. Bulb will not glow as the circuit is incomplete.
C: The circuit is complete. Therefore, bulb will glow.
D: Rubber is a bad conductor of electricity. Hence, it will not allow current to flow and the bulb will not glow.

Question 5.
Why are the bulbs in Figures B, C and D not lighting up?

Answer:

• In B, the blue wire is broken. Hence circuit is incomplete and current does not flow. Therefore, bulb will not light up.
• In C, the red wire is broken. Hence circuit is incomplete and current does not flow. Therefore, bulb will not light up.
• In D, both wires are connected to the same terminal. Hence, there is no potential difference and current does not flow. Therefore, bulb will not light up.

Class 9 Science Chapter 3 Current Electricity Additional Important Questions and Answers

Choose and write the correct option:

Question 1.
1mA = …………… A.
(a) 10³
(b) 10^-3
(c) 10⁶
(d) 10^-6
Answer:
(a) 10³

Question 2.
To increase the effective resistance in a circuit the resistors are connected in ………….. .
(a) Series
(b) Parallel
(c) Both ways
(d) None of these
Answer:
(a) series

Question 3.
1 kilowatt hr = …………… joules.
(a) 4.6 x 10⁶
(b) 3.6 x 10⁶
(c) 30.6 x 10⁶
(d) 3.6 x 1O⁵
Answer:
(b) 3.6 x 10⁶

Question 4.
The voltage difference in India between the live and neutral wires is about ………….. .
(a) 110 V
(b) 220 V
(c) 440 V
(d) 60 V
Answer:
(b) 220 V

Question 5.
Resistivity is the specific property of a ………….. .
(a) Area of cross-section
(b) Temperature
(c) Length
(d) Material
Answer:
(d) material

Question 6.
If a P.D. of 12 V is applied across a 3Ω resistor then the current passing through it is ………….. .
(a) 36 A
(b) 4 A
(c) 0.25 A
(d) 15 A
Answer:
(b) 4 A.

Question 7.
In order to measure the electric current flowing through a circuit, we connect …………… with the circuit.
(a) a voltmeter in parallel
(b) a voltmeter in series
(c) an ammeter in parallel
(d) an ammeter in series
Answer:
(d) an ammeter in series

Question 8.
P and Q are two wires of same length and different cross-sectional areas and made of same material. Name the property which is same for both the wires.
(a) Resistivity
(b) Resistance
(c) Current
(d) Both (a) and (b)
Answer:
(a) Resistivity

Question 9.
The following is true for identical bulbs connected in parallel.
(a) All bulbs glow with unequal brightness.
(b) If one bulb is non-functional, all will stop working.
(c) All bulbs glow with equal brightness.
(d) Bulbs function for longer time.
Answer:
(c) All bulbs glow with equal brightness

Question 10.
The …………… wire is either yellow or green in colour.
(a) Live
(b) Neutral
(c) Earth
(d) Fuse
Answer:
(c) earth

Question 11.
A current flows through a circuit due to the difference in …………… between two points in the conductor.
(a) Gravity
(b) Potential
(c) Resistance
(d) Fuse
Answer:
(b) potential

Question 12.
…………… is the amount of charge flowing through a particular cross sectional area in unit time.
(a) Electric current
(b) Ampere
(c) Volt
(d) Force
Answer:
(a) Electric current

Question 13.
The flow of …………… constitutes the electric current in a wire.
(a) Protons
(b) Neutrons
(c) Electrons
(d) Gravitons
Answer:
(c) electrons

Question 14.
The conventional direction of flow of current is from …………… terminal to …………… terminal.
(a) Negative to positive
(b) Neutral to positive
(c) Positive to negative
(d) Positive to neutral
Answer:
(c) positive, negative

Question 15.
Current stops flowing when potential difference between two ends of a wire becomes ………….. .
(a) Zero
(b) Positive
(c) Negative
(d) Higher
Answer:
(a) zero

Question 16.
Resistances are connected in …………… so as to pass the same current through them.
(a) Series
(b) Parallel
(c) Reversed
(d) Disconnect
Answer:
(a) series

Question 17.
To decrease the effective resistance in a circuit, the resistances are connected in ………….. .
(a) Series
(b) Parallel
(c) Reversed
(d) Disconnect
Answer:
(b) parallel

Question 18.
1μV = …………… V
(a) 10²
(b) 10^-6
(c) 10⁶
(d) 10³
Answer:
(b) 10^-6

Question 19.
Good conductors contain a large number of ………….. .
(a) Protons
(b) Neutrons
(c) Electrons
(d) Gravitons
Answer:
(c) free electrons

Question 20.
Electrons flow from …………… terminal to …………… terminal in a conductor when a potential difference is applied.
(a) Negative to positive
(b) Neutral to positive
(c) Positive to negative
(d) Positive to neutral
Answer:
(a) negative, positive

Find the odd one out:

Question 1.
Voltmeter, Ammeter, Galvanometer, Thermometer
Answer:
Thermometer

Question 2.
Rubber, Silver, Copper, Gold
Answer:
Rubber

Question 3.
Wood, Glass, Steel, Rubber
Answer:
Steel

Question 4.
Graphite, Diamond, Fullerenes, Coal
Answer:
Fullerenes

Distinguish between:

Question 1.
Voltmeter and Ammeter
Answer:

Voltmeter	Ammeter
(i) It is an instrument used to measure the potential difference between two terminals of a cell.	(i) It is an instrument to measure the electric current flowing through a circuit.
(ii) It is connected in parallel with the cell.	(ii) It is connected in series with the cell.
(iii) It has a very high resistance.	(iii) It has a very low resistance.
(iv) Voltmeter has range of volts.	(iv) Ammeter has range of amps.

Question 2.
Ohmic conductors and Non-Ohmic conductors
Answer:

Conductors	Insulators
(i) Substances which have very low electrical resistances are called conductors.	(i) Substances which have extremely high electrical resistances are called Insulators.
(ii) They contain a large number of free electrons.	(ii) They contain practically no free electrons.
(iii) Conductors are mostly metals.	(iii) Insulators are mostly non metals.
(iv) Conductor example iron, copper.	(iv) Insulator example rubber, plastic.

Question 3.
Conductors and Insulators
Answer:

Resistance	Resistivity
(i) The hindrance to the flow of electrons is called resistance.	(i) Resistivity is the specific property of the material of a conductor.
(ii) The S.I. unit of resistance is ohm (Q).	(ii) The S.I. unit of resistivity is ohm-metre (Q – m).
(iii) It depends on temperature, area of cross-section, length of conductor and material of the conductor.	(iii) It depends on material of the conductor.
(iv) Resistance can be changed as it depends of external factor as well.	(iv) Resistivity cannot be changed as it depends of internal factors.

Question 4.
Resistance in Series and Resistance in Parallel
Answer:

Resistance in Series	Resistance in Parallel
(i) Effective resistance of the resistors is equal to the sum of their individual resistances.	(i) Inverse of the effective resistance is equal to the sum of the inverse of individual resistances.
(ii) The same current flows through each resistor.	(ii) The total current flowing through the circuit is the sum of the currents flowing through individual resistors.
(iii) The effective resistance is larger than each of the individual resistances.	(iii) The effective resistance of resistors connected in parallel is less than the least resistance of individual resistors.
(iv) This arrangement is used to increase the resistance in a circuit.	(iv) This arrangement is used to decrease the resistance in a circuit.

Question 5.
Answer:

Electric current	Potential difference
(i) The flow of electric charge per unit time is called electric current.	(i) The difference in potential between the positive and negative terminal of a cell is the potential difference of that cell.
(ii) The S.I. unit of electric current is ampere.	(ii) The S.I. unit of potential difference volt.
(iii) Ammeter is used to measure electric current.	(iii) Voltmeter is used to measure electric current.
(iv) Current is represented by: \(\mathrm{I}=\frac{\mathrm{Q}}{\mathrm{t}}\)	(iv) Potential difference is represented by: \(\mathrm{V}=\frac{\mathrm{W}}{\mathrm{Q}}\)

Make pair:

Question 1.
Copper : Conductor :: Rubber : ……………….
Answer:
Insulator

Question 2.
Aluminium : ………………. :: Indium oxide : Super Insulator
Answer:
Super conductor

Question 3.
Parallel Connection : \(\frac{1}{\mathrm{R}_{p}}=\frac{1}{\mathrm{R}_{1}}+\frac{1}{\mathrm{R}_{2}}\) :: Series Connection : ……………….
Answer:
R_s = R₁ + R₂

(4) Electric Current : ………………. :: Electric charge : Coulomb
Answer:
Ampere

(5) Electric resistance : Ohm :: Potential difference : ……………….
Answer:
Volt

State whether the following statements are true or false. Correct the false statements:

(1) The SI unit of charge is volt.
(2) Voltmeter is always connected in series with the device.
(3) The conventional direction of flow of current is from positive terminal to negative terminal.
(4) Silver and copper are good conductors.
(5) Resistivity of pure metals is more than alloys.
(6) Resistance in series arrangement is used to decrease resistance of circuit.
(7) A conducting wire offers less resistance to flow of electrons.
(8) Charges are measured in ampere.
(9) The unit of potential difference is ampere.
(10) Resistance of a conductor is inversely proportional to the length of the conductor.
(11) Ammeter is connected in parallel to the cell to measure current.
(12) Fuse is made of wire having high melting point.
Answer:
(1) False. The SI unit of charge is coulomb.
(2) False. Voltmeter is ahvays connected in parallel with the device.
(3) True
(4) True
(5) False. Resistivity of pure metals is less than alloys.
(6) False. Resistance in series arrangement is used to increase resistance of circuit.
(7) True
(8) False. Charges are measured in coulomb.
(9) False. The unit of potential difference is volt.
(10) False. Resistance of a conductor is directly proportional to the length of the conductor.
(11) False. Ammeter is connected in series to the cell to measure current.
(12) False. Fuse is made of wire having low melting point.

Answer the following in one sentence:

Question 1.
Which is the unit used to measure large voltages?
Answer:
Kilovolts and Megavolts are the units used to measure large voltages.

Question 2.
What is the SI unit of potential difference?
Answer:
The SI unit of potential difference is volt (V).

Question 3.
What is lightning?
Answer:
Lightning is the electric discharge travelling from clouds at high potential to earth’s surface which is at zero potential.

Question 4.
What is the unit of resistivity.
Answer:
The unit of resistivity is ohm metre (Qm).

Question 5.
Which substances are called conductors of electricity?
Answer:
Those substances which have very low electrical resistance are called conductors of electricity.

Question 6.
What is Earth wire?
Answer:
Earth wire is generally yellow or green colour, it is connected to a metal plate buried deep underground near the house and is for safety purpose.

Write formula:
(1) E1ectriccurrent \(=\frac{Q}{t}\)
(2) Electric charge = It
(3) Potential difference = IR
(4) Electric resistance \(=\frac{V}{I}\)
(5) Current \(=\frac{V}{R}\)
(6) Resistivity \(=\frac{RA}{L}\)

Give scientific reasons:

Question 1.
Free electrons are required for conduction of electricity.
Answer:

• Every atom of a metallic conductor has one or more outermost electrons which are very weakly bound to the nucleus.
• These are called free electrons. These electrons can easily move from one part of a conductor to its other parts. The negative charge of the electrons also gets transferred as a result of this motion.
• The free electrons in a conductor are the carriers of negative charge. Hence, free electrons are required for conduction of electricity.

Question 2.
Wood and glass are good insulators.
Answer:

• Those substances which have infinitely high electrical resistance are called insulators.
• Wood and glass have high resistance and negligible free electrons for conduction of electricity.
• Hence, wood and glass are good insulators.

Question 3.
Connecting wires in a circuit are made of copper and aluminium.
Answer:

• Copper and aluminum are good conductors of electricity.
• They have low electrical resistance and large number of free electrons.
• As they are malleable and ductile, they can be drawn into thin wires. Hence, connecting wires in a circuit are made of copper or aluminum.

Question 4.
A thick wire has a low resistance.
Answer:

• The resistance (R) of a wire is inversely proportional to the cross-sectional area (A) of a wire. i.e., R i
• Thus, greater is the cross-sectional area of a conductor (wire), lower is its resistance. Hence, a thick wire has a low resistance.

Question 5.
A series combination of resistances is used to increase the resistance of a circuit.
Answer:

• When resistances are connected in series, the effective resistance of the resistors is equal to the sum of their individual resistances. R_s = R₁ + R₂ ………….. R_n
• The effective resistance is larger than each of the individual resistances. Hence, This arrangement is used to increase the resistance in a circuit.

Question 6.
A parallel combination of resistances decreases the effective resistance of the circuit.
Answer:

• In a parallel combination, the inverse of the effective resistance is equal to the sum of the inverses of individual resistances. \(\frac{1}{\mathrm{R}_{\mathrm{p}}}=\frac{1}{\mathrm{R}_{1}}+\frac{1}{\mathrm{R}_{2}} \ldots \ldots \cdot \frac{1}{\mathrm{R}_{\mathrm{n}}}\)
• The effective resistance of resistors connected in parallel is less than the individual resistors.
• Due to this, any addition of an individual resistance in parallel combination will decrease the overall resistance of the circuit. Hence, a parallel combination of resistance decreases the effective resistance of the circuit.

Question 7.
Lightning occurs from sky to earth.
Answer:

• Lightning is the electric discharge travelling from clouds at high potential to the earth’s surface, which is at zero potential.
• The earth is always at lower potential as compared to the clouds.
• Hence, lightning occurs from sky to earth.

Question 8.
In streetlights, bulbs are connected in parallel.
Answer:

1. Even if any one of the several bulbs connected in parallel becomes non-functional because of some damage to its filament, the circuit does not break as the current flows through the other paths, and the rest of the bulbs light up.
2. When several bulbs are connected in parallel, they emit the same amount of light as when they are connected individually in the circuit, while bulbs connected in series emit less light than when connected individually. Hence, streetlights are connected in parallel.

Numerical:
Numericals based on the formula: (1) Q= It (2) W= VQ

Question 1.
A current of 0.4 A flows through a conductor for 5 minutes. How much charge would have passed through the conductor?
Answer:
Given: Current (I) = 0.4 A
Time (t) = 5 min = 5 x 60 = 300 s
To find: Charge (Q) =?
Formula: Q = 1 x
Solution: Q = 0.4 x 300
Q= 120 C.
Charge passing through the conductor is 120

Question 2.
Find the amount of work done if 3 C of charge is moved through a potential difference of 9 V.
Answer:

The work done is 27 joule.

Question 3.
The resistance of the filament of a bulb is 1000Ω. It is drawing a current from a source of 230 V. How much current is flowing through it?
Answer:

The current flowing through the filament of bulb is 0.23 A.

Question 4.
The length of a conducting wire is 50 cm and its radius is 0.5 mm. If its resistance is 30Ω, what is the resistivity of its material?
Answer:


The resistivity of the wire is 4.71 x 10^-5 Qm.

Question 5.
A current of 0.24 A flows through a conductor when a potential difference of 24 V is applied between its two ends. What is its resistance?
Answer:

The resistance of a conductor is 100Ω.

Question 6.
If three resistors 15Ω, 3Ω and 4Ω each are connected in series, what is the effective resistance in the circuit?
Answer:
Given:
R₁ =15Ω
R₂ = 3Ω
R₃ = 4Ω
Effective resistance in series (R_s) = ?
R_s = R₁ + R₂ + R₃
R_s = 15 + 3 + 4
R_s = 22Ω
The effective resistance in the circuit is 22Ω.

Question 7.
Three resistances 15Ω, 20Ω and 10Ω are connected in parallel. Find the effective resistance of the circuit.
Answer:


The effective resistance of the circuit is 4.615 Ω. It is less than the least of the three i.e., 10Ω.

Write a note on the following:

Question 1.
Electric current
Answer:
An electric current is the flow of electrons through a conductor. Quantitatively, current
(I) is defined as the charge passing through a conductor in unit time.
\(T=\frac{Q}{t}\)

Question 2.
1 ampere
Answer:
One ampere current is said to flow in a conductor if one coulomb charge flows through it every second.
\(1 \mathrm{~A}=\frac{1 \mathrm{C}}{1 \mathrm{~s}}\)

Question 3.
1 volt
Answer:
The potential difference between two points is said to be 1 volt if 1 joule of work is done in moving 1 coulomb of electric charge from one point to another.
\(1 \mathrm{~V}=\frac{1 \mathrm{~J}}{1 \mathrm{C}}\)

Question 4.
Potential Difference
Answer:
The amount of work done to carry a unit positive charge from point A to point B is called the electric potential difference between the two points.
\(V=\frac{W}{Q}\)

Question 5.
Conductor
Answer:
Those substances which have very low resistance are called conductors. Current can flow easily through such materials.

Question 6.
Insulators
Answer:
Those substances which have extremely high resistance and through which current cannot flow are called insulators.

Question 7.
1 ohm
Answer:
If one Ampere current flows through a conductor when one Volt potential difference is applied between its ends, then the resistance of the conductor is one Ohm.
\(\frac{1 \text { Volt }}{1 \text { Ampere }}=1 \mathrm{Ohm}\)

Question 8.
Potential
Answer:
The level of electric charge present is known as potential.

Question 9.
Ohm’s Law
Answer:
If the physical state of a conductor remains constant, the current (I) flowing through it is directly proportional to the potential difference (V) between its two ends.
V = IR

Question 10.
Superconductors
Answer:
The resistance of some conductors becomes nearly zero if their temperature is decreased up to a certain value close to 0 K. Such conductors are called superconductors.

Question 11.
Non-ohmic conductors
Answer:
Conductors which do not obey Ohm’s law are called non-ohmic conductors.

Complete the flow charts:

(1) Protection from Electricity

(2) Resistance

(3) Resistivity

Write properties/characteristics/advantages of the following:

Superconductors
Answer:
The resistance of these conductors becomes nearly zero if their temperature is decreased up to a certain value close to 0 K. Aluminium is an example of Super Conductor. Superconductors can be used in space missions to increase/ boost the signal strength. They are also used i in the data fibres to increase the speed of data transfer.

Give explanations of the given statements:

Question 1.
Safety precautions are to be taken while using electricity.
Answer:

• Electric switches and sockets should be fitted at a height at which small children cannot reach and put pins or nails inside. Plug wires should not be pulled while removing a plug from its socket.
• Before cleaning an electrical appliance it should be switched off and its plug removed from the socket.
• One’s hands should be dry while handling an electrical appliance, and, as far as possible, one should use footwear with rubber soles.
• As rubber is an insulator, it prevents the current from flowing’ through our body, thereby protecting it.
• If a person gets an electric shock, you should not touch that person. You should switch off the main switch or remove the plug from the socket if possible.
• If not, then you should use a wooden pole to push the person away from the electric wire.

Question 2.
In a domestic circuit colour code is followed while setting up electrical wiring.
Answer:

• The electricity in our homes is brought through the main conducting cable either from the electric pole or from underground cables.
• Usually, there are three wires in the cable.
  (a) Live wire which brings in the current. It has a red or brown insulation.
  (b) Neutral wire through which the current returns. It is blue or black.
  (c) Earth wire is of yellow or green colour. This is connected to a metal plate buried deep underground near the house and is for safety purposes.
• In India, the voltage difference between the live and neutral wires is about 220 V.
• Live and neutral wires are connected to the electric meter through a fuse.
• They are connected through a main switch, to all the conducting wires inside the home so as to provide electricity to every room.
• In each separate circuit, various electrical appliances are connected between the live and neutral wires.
• The different appliances are connected in parallel and the potential difference across every appliance is the same.

Question 3.
Fuse used in electrical circuit can save electrical objects from damage.
Answer:

• Fuse wire is used to protect domestic appliances.
• It is made of a mixture of substances and has a specific melting point.
• It is connected in series to the electric appliances. If for some reason, the current in the circuit increases excessively, the fuse wire gets heated and melts.
• The circuit gets broken and the flow of current stops, thus protecting the appliance.
• This wire is fitted in a groove in a body of porcelain-like non-conducting material. For domestic use, fuse wires with upper limits of 1 A, 2 A, 3 A, 4 A, 5 A and 10 A are used.

Question 4.
Bulbs arranged in parallel glow brighter than bulbs arranged in series.
Answer:

• The amount of light given out by bulbs in parallel combination will be more than that in series combination.
• In parallel combination the resistance of the overall circuit decreases whereas in series it increases, so the current flowing through the bulbs in parallel circuit is more.
• Due to this, intensity of light given out by bulbs in parallel combination is more than the bulbs in series combination.

Complete the following table:
Answer:

Solve the numerical:

Question 1.
The length of a conducting wire is 50 cm and its radius is 0.5 mm. If its resistance is 30Ω, what is the resistivity of its material?
Answer:

The resistivity of the wire is 4.71 x 10^-5 Ωm.

Question 2.
Determine the current that will flow when a potential difference of 33 V is applied between two ends of an appliance having a resistance of 110 Ω. If the same current is to flow through an appliance having a resistance of 500 Ω, how much potential difference should be applied across its two ends?
Answer:

The current is 0.3 A and potential difference to be applied is 150 V.

Question 3.
Determine the resistance of a copper wire having a length of 1 km and diameter of 0.5 mm.
Answer:
Given: Resistivity of copper (p)
= 1.7 x 10^-8 Ω m
Converting all measures into metres.
Length of wire (L) = 1 km
= 1000 m = 10³ m
Diameter of wire (d) = 0.5 mm
= 0.5 x 10^-3m
To find: Resistance of wire (R) = ?
Formula:
\(R=\rho \frac{L}{A}\)
Solution:
If d is the diameter of the wire then, its area of cross-section

The resistance of a copper wire is 85Ω and area of cross section is 0.2 x 10^-6 m²

Question 5.
Two resistors having resistance of 16 and 14 are connected in series. If a potential difference of 18 V Is applied across them, calculate the current flowing through the circuit and the potential difference across each individual resistor.
Answer:


The current in the circuit is 0.6 A and potential across 16 Ω retor is 9.6 volt and 14 Ω resistor is 8.4 voIt.

Question 6.
If the resistors 5 Ω, 10 Ω and 30 Ω are connected in parallel to battery of 12 V, find the effective resistance in the circuit. Calculate the total current and current in each resistor.
Answer:


(a) The total current is 4 A and current in each resistor is 2.4 A, 1.2 A and 0.4 A respectively.
(b) The effective resistance in the circuit is 3Ω.

Complete the diagram and answer the questions:

Question 1.
The following figure shows the symbols for components used in the accompanying electrical circuit.

(a) Place them at proper places and complete the circuit.
(b) Which law can you prove with the help of the above circuit?
(c) State expression for Ohm’s law
Answer:

(b) This circuit can be used to prove Ohm’s law.
(c) V = IR is the expression of Ohm’s law

Question 3.
Explain with the help of a diagram, what are free electrons and how they move through the conductor?

Answer:

• Every atom of a metallic conductor has one or more outermost electrons which are very weakly bound to nucleus.
• These are called free electrons.
• These electrons can easily move from one part of a conductor to its other parts.

Complete the paragraph:

Question 1.
If resistors are connected in series,
Answer:
The same current flows through each resistor. The effective resistance of the resistors is equal to the sum of their individual resistances. The potential difference between the two extremes of the arrangement is equal to the sum of the potential differences across individual resistors. The effective resistance is larger than each of the individual resistances. This arrangement is used to increase the resistance in a circuit. This type of connection is used in electrical heating equipment like geysers, iron, and hair dryers.

Question 2.
If a number of resistors are connected in parallel,
Answer:
The inverse of the effective resistance is equal to the sum of the inverses of individual resistances. The current flowing through an individual resistor is proportional to the r inverse of its resistance and the total current flowing through the circuit is the sum of the currents flowing through individual resistors. The potential difference across all r resistors is the same. The effective resistance of resistors connected in parallel is less than r the least resistance of individual resistors.

This arrangement is used to reduce the resistance in a circuit. Even if any one of the several bulbs connected in parallel becomes non-functional because of some damage to its filament, the circuit does not break as the current flows, through the other paths, and the rest of the bulbs light up. When several bulbs are connected in parallel, they emit the same amount of light as when they are connected individually in the circuit, while bulbs connected in series emit less light than when connected individually.

Read the paragraph and answer the questions.

Electric switches and sockets should be fitted at a height at which small children cannot reach and put pins or nails inside. Plug wires should not be pulled while removing a plug from its socket. Before cleaning an electrical appliance it should be switched off and its plug removed from the socket. One’s hands should be dry while handling an electrical appliance, and, as far as possible, one should use footwear with rubber soles. As rubber is an insulator, it prevents | the current from flowing through our body, thereby protecting it. If a person gets an electric shock, you should not touch that person. You should switch off the main switch and if the switch is too far or you do not know where it is located, then you should remove the plug from the socket if possible. If not, then you should use a wooden pole to push the person away from the electric wire.

(i) Why should the electrical sockets be fitted at a certain height?
Answer:
Electric switches and sockets should be fitted at a height at which small children cannot reach and put pins or nails inside.

(ii) Why plug wires should not be pulled out while removing any electrical device?
Answer:
Plug wires should not be pulled out while removing any electrical device as it may cause the wire to break causing short circuit which can lead to fire or death.

(iii) Why should a person wear footwear with rubber soles while handling electrical appliances. .
Answer:
As rubber is an insulator, it prevents the current from flowing through our body, thereby protecting it. Hence a person should wear footwear with rubber soles while handling electrical appliances.

(iv) Saee is touching an electrical button socket with wet hands what will you advise her and why?
Answer:
We will advise her to dry her hands before touching any electrical sockets or devices as water on the hands can cause an electrical short circuit producing shock to the person touching it.

(v) Sneha is getting an electrical shock what will you do the save her life?
Answer:
We should switch off the main switch and if the switch is too far or we do not know where it is located, then we should remove the plug from the socket if possible. If not, then we should use a wooden pole to push the person away from the electric wire.

(vi) Give a title to the above passage.
Answer:
Precautions to be taken while using electricity

Answer the questions in details:

Question 1.
Find the expression (i.e., derive the expression) for the resistors connected in series.
Answer:
Expression for the resistance connected in series:
(i) Let R₁, R₂ and R₃ be three resistances connected in series between C and D.
(ii) Let R_s be the effective resistance in circuit and V₁, V₂ and V₃ be the potential difference across R₁, R₂ and R₃ respectively.
(iii) Let the potential difference across CD be V.

(iv) In series combination.
v = v₁ + v₂ + v₃ ……………………(i)
By using Ohm’s law
V = IR_s
∴ V₁= IR₁, V₂ = IR₂ and V₃ = 1R₃
Substituting these values in equation (j) we get
IR_s = IR₁ + IR₂ + IR₃
∴ R_s = R₁ + R₂ + R₃
For ‘n’ number of resistors conneded in series we get
R_s = R₁ + R₂ + R₃ + …………………. + R_n

Question 2.
Find the expression (i.e., derive the expression) for the resistors connected in parallel.
Answer:
Expression for the resistance connected in parallel.
(i) Let R₁, R₂ and R₃ be the three resistances connected in parallel combination between points C and D and let R be their effective resistance.
(ii) Let I₁, I₂ and I₃ be the currents flowing through resistances R₁, R₂ and R₃ respectively. Let I be the current flowing through the circuit and V be the potential difference of the cell.

(iii) For parallel combination of resistances,

(iv) Substituting the values of (I, I₁, I₂ and I₃) in equation (i) we get

Question 3.
Find the expression for resistivity of a material.
Answer:
(i) At a given temperature, the resistance (R) of a conductor depends on its length (L), area of cross-section (A) and the material it is made of. If the resistance of a conductor is R, then

(ii) p is the constant of proportionality and is called the resistivity of the material.
(iii) The unit of resistivity in SI units is Ohm metre (Ω m).
(iv) Resistivity is a specific property of a material and different materials have different resistivity. ’

Make the concept diagram and explain:

Question 1.
Make the concept diagram of an electrical circuit and explain the working of a fuse.

Answer:

• Fuse wire is used to protect domestic appliances.
• It is made of a mixture of substances and has a specific melting point.
• It is connected in series to the electric appliances. If for some reason, the current in the circuit increases excessively, the fuse wire gets heated and melts. The circuit gets broken and the flow of current stops, thus protecting the appliance.
• This wire is fitted in a groove in a body of porcelain-like non-conducting material. For domestic use, fuse wires with upper limits of 1A, 2A, 3A, 4A, 5A, and lO Aareused.

(2) Show motion of electrons in an circuit and explain precautions while using an electrical device.
Answer:

• Electric switches and sockets should be fitted at a height at which small children cannot reach and put pins or nails inside. Plug wires should not be pulled while removing a plug from its socket.
• Before cleaning an electrical appliance it should be switched off and its plug removed from the socket.
• One’s hands should be dry while handling an electrical appliance, and, as far as possible, one should use footwear with rubber soles.
• As rubber is an insulator, it prevents the current from flowing through our body, thereby protecting it.
• If a person gets an electric shock, you should not touch that person. You should switch off the main switch or remove the plug from the socket if possible.
• 1f not, then you should use a wooden pole to push the person away from the electric wire.

Q.4.4.Complete the incomplete figure and give an explanation:

Answer:

If the physical state of a conductor remains constant, the current (I) flowing through it is directly proportional to the potential difference (V) between its two ends.

I α V
I = kV (k = constant of proportionality)

This is known as Ohm’s law.
We can obtain the SI unit of resistance from the above formula, Potential difference and current are measured in Volts and Amperes respectively. The unit o resistance is called Ohm. It is indicated by the symbol Ω.

The resistance of one Ohm : If one Ampere current flows through a conductor when one Volt potential difference is applied between its ends, then the resistance of the conductor is one Ohm.

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 9 Changing Life 1 Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 9 Changing Life 1

Class 9 History Chapter 9 Changing Life 1 Textbook Questions and Answers

1. Choose the proper option and rewrite the completed statements:

Question 1.
The first open-heart surgery under the leadership of Dr N Gopinath was successfully performed in the city of _____.
(a) Chennai
(b) Vellore
(c) Hyderabad
(d) Mumbai
Answer:
(b) Vellore

Question 2.
_______is known as the father of the ‘Jaipur foot’.
(a) Dr N. Gopinathan
(b) Dr Pramod Sethi
(c) Dr Mohan Rao
(d) None of the above
Answer:
(b) Dr Pramod Sethi

2. Identify the wrong pair and rewrite the corrected one:

Question 1.
(1) Dr N. Gopinath – open heart surgery
(2) Ramchandra Sharma – a skilled craftsman
(3) Dr Subhash Mukhopadhyaya – test tube baby
(4) Dr Mohan Rao – polio
Answer:
Wrong Pair: Dr Mohan Rao – polio

3. Explain the concepts:

Question 1.
The institution of the family.
Answer:
The institution of family can be explained as follows:

• During the pre-independence period, the institution of the family was an important identifying feature of Indian society.
• India was known all over the world as the country of joint families.
• However, the wave of globalisation has now given an impetus to the system of nuclear families.

Question 2.
Jaipur Foot technology
Answer:
(i) Dr Pramod Sethi designed and manufactured artificial limbs, noses and ears, with the help of the skilled craftsman Ramchandra Sharma.

(ii) These artificial body parts manufactured with the help of the Jaipur foot technology have made it easy for the differently-abled to walk bare-foot on rough surfaces, run, go cycling, work in the fields, climb trees, and even climb mountains, etc.

Question 3.
Urbanization
Answer:
(i) Urbanisation is a process of the concentration of population in a city or urban area. Increasing population is one major reason for urbanisation.

(ii) A few other factors affecting urbanisation are air, water and the economic as well as social organisations necessary for community life.

(iii) In the context of post-independence India, the increase in urban population is also due to factors such as a reduction in the mortality rate, industrialisation, unavailability of means of livelihood in rural areas, job opportunities in cities and the resulting migration.

Question 4.
Changing economic life
Answer:
(i) Earlier, every village was economically self-sufficient. A majority of the villagers were dependent on farming. Farm produce used to be distributed among artisans as payment for their work.
(ii) Now this situation has changed. Rural areas are engaged in agriculture and occupations ancillary to farming while urban society is engaged in non-agricultural production and the service sector.

4. Give reasons:

Question 1.
The campaign for pulse polio immunisation was initiated.
Answer:
The campaign of pulse polio immunisation was initiated because:

• Before 1978, every year, six Indian infants out of every 10 who were bom faced fatal health problems in the very first year of their birth.
• The immunisation programme was taken up to overcome the threat of polio, measles, tetanus, TB, diphtheria, and whooping cough.
• The ‘pulse polio’ immunisation programme started in 1995 has controlled polio.

Question 2.
The Rural Water Supply Scheme was started.
Answer:
The State started the Rural Water Supply Scheme for sinking wells and providing piped water because:

(i) It is necessary to give priority to facilities for public hygiene and health-care. However even today, the rural population faces problems related to year-round provision of drinking water, toilets, open drainage, narrow roads, inadequate electrification and lack of facilities for medical treatment.

(ii) There is a lack of good quality educational facilities from primary level to higher education, centres for recreation and libraries.

(iii) The collective development scheme had an important place in all the first four five year plans of the government of India. The State of Maharashtra registered remarkable achievements under this scheme. By 1971,1677 small dams had also been built.

5. Answer the following questions in 25-30 words:

Question 1.
Which kinds of discrimination does the Constitution prohibit?
Answer:
(i) According to our Constitution, all Indians are equal before the law, and they cannot be discriminated against on the basis of religion, race, caste, gender or place of birth.

(ii) All citizens have the right to freedom of speech and expression, freedom to assemble peacefully without arms, freedom to form associations, freedom to move, to live and settle down anywhere on Indian territory and to practice any occupation.

(iii) Indian citizens living anywhere in India enjoy the right to nurture their language, script and culture.

Question 2.
What is the aim of the social welfare programme?
Answer:
(i) The objective to establish the welfare state has been incorporated in the Constitution itself.

(ii) The social welfare programmes aim to make opportunities for full-time employment, health care, education and development available to all Indian citizens. Indian society is riddled with large scale economic, social, educational and cultural inequalities.

(iii) However, it is necessary that opportunities for development reach women, children, the differently-abled, the scheduled castes and tribes as well as other minorities.

(iv) Hence on 14th June 1964, the government of India constituted the Ministry of Social Welfare. Under this ministry, various programmes are implemented for nutrition and child- development, social security and social protection, women’s welfare and development.

Question 3.
What are the challenges facing rural development?
Answer:

(i) In 1961, 82% of India’s population resided in villages. In 1971, the percentage was 80.01%.
(ii) So far, the rural area has shouldered the responsibility of providing food grains and other raw material to urban areas, supplying labour to the industrial sectors of the city, and taking care of natural resources.
(iii) However there are three major challenges with reference to rural development, namely, bringing about economic development, developing facilities to meet social needs and finally bringing about a change of attitude in matters concerning society, culture and ways of thinking.
(iv) It is also equally necessary to expedite irrigation projects and bring about land reforms.

6. Write a brief review of the significant events in the field of public health in India.
Answer:
The Constitution of India states that the primary duty of the government is to raise the people’s standard of living, to ensure proper nutrition and to improve public health. The Ministry of Health and Social Welfare at the Centre helps the state governments in this regard.

(i) To make primary health services as well as medical care available to rural people, the tribals and the poor was an objective of the Sixth Five Year plan. Efforts were made towards helping people maintain good health by giving recognition to Unani, Homoeopathy, Ayurveda and Naturopathy in addition to Allopathy.

(ii) In 1962, the first successful open heart surgery was performed under the leadership of Dr N. Gopinath at Christian Medical College Hospital at Vellore in Tamil Nadu. Hence, it is no longer necessary to go abroad for such treatment.

(iii) The invention of the ‘Jaipur Foot’ has transformed the lives of the disabled in India.

(iv) Before 1968, if a person lost a leg in an accident, he had to suffer for the rest of his life. In order to remedy the situation, Dr Pramod Sethi designed and manufactured artificial limbs, noses and ears, with the help of the skilled craftsman Ramchandra Sharma.

(v) These artificial body parts manufactured with the help of the Jaipur foot technology have made it easy for the differently-abled to walk bare-foot on rough surfaces, run, go cycling, work in the fields, climb trees, and even climb mountains, etc.

(vi) They save on the expenses on shoes as there is no need for footwear on these artificial limbs. They can bend their legs at the knees and sit cross-legged.

(vii) These feet are also convenient while working in water or under wet conditions.

Class 9 History Chapter 9 Changing Life 1 Additional Important Questions and Answers

Choose the correct option from the given options and rewrite the statements:

Question 1.
On 14th June 1964, the government of India constituted the Ministry of ________.
(a) Home Affairs
(b) Social Justice
(c) Social Welfare
(d) Education
Answer:
(c) Social Welfare

Question 2.
According to the 1971 Census, _____ people in India belonged to scheduled castes.
(a) 21%
(b) 22%
(c) 23%
(d) 24%
Answer:
(b) 22%

Question 3.
UNESCO awarded its international prize for the spread of literacy to ______ in 1972 and tribes.
(a) Gujarat
(b) Bengal
(c) Maharashtra
(d) Karnataka
Answer:
(c) Maharashtra

Question 4.
‘Sinhagad Express’ on the Pune-Mumbai route and ‘ _____’ on the Mumbai-Kolkata route were started which had no class divisions.
(a) Karmabhoomi Express
(b) Howrah Mail
(c) Shalimar Express
(d) Gitanjali Express
Answer:
(d) Gitanjali Express

Question 5.
A _______ was formed to help the development of industry in rural areas.
(a) Village Industries Planning Committee
(b) Co-operative Credit Societies
(c) Industrial Development Association
(d) Rural Industrial Council
Answer:
(a) Village Industries Planning Committee

Question 6.
A settlement smaller than a village is called a _____.
(a) Town
(b) Taluka
(c) Hamlet
(d) Locality
Answer:
(c) Hamlet

Identify and write the wrong pair in the following sets:

Question 1.
(1) Kothari Commission – Agricultural Universities
(2) Durga – Open heart surgery
(3) Pramod Sethi – Artifical limbs
(4) Dr Mohan Rao – Kidney transplant
Answer:
Wrong Pair : Durga – Open heart surgery

Question 2.
(1) Christian Medical College – Tamil Nadu
(2) Vidya Niketan – Chikhaldara
(3) Gitanjali Express – Pune-Mumbai route
(4) First successful artificial conception – Kolkata
Answer:
Wrong Pair : Gitanjali Express – Pune-Mumbai route

Question 3.
(1) Ministry of Social welfare established in -1962
(2) Pulse polio immunisation started – 1995
(3) Maharashtra received a prize for literacy in Maharashtra -1972
(4) Rural Electrification Corporation – 1969
Answer:
Wrong Pair : Ministry of Social welfare established in -1962

Question 4.
(1) Village Industries Planning Committee – Development of Industries in rural areas
(2) Vidya Niketan – residential highschools
(3) Rural water supply schemes – sinking wells
(4) Objective of Sixth Five Year Plan – Advanced technology
Answer:
Wrong Pair : Objective of Sixth five year plan – Advanced technology

Do as Directed:

Complete the table

Question 1.
Answer:

Institutes	Location
Rural Electrification Co-operative societies	Andhra Pradesh, Gujarat, Karnataka, Maharashtra and Uttar Pradesh
Agriculture Universities	Rahuri, Akola, Parbhani and Dapoli in Maharashtra
Vidya Niketan	Satara, Aurangabad, Nasik and Chikhaldara

Question 2.
Answer:

Rural Community in Pre-Globalisation period	Urban Community in Pre-Globalisation period
Priority to farming and ancillary vocations (jobs)	Priority to nonagricultural production and services.
Small in size, homogeneous in terms of language, culture and tradition.	Large in size, heterogeneous in terms of languages, cultures and traditions.
Elementary kinds of vocations; trend of sending villagers to cities rather than accommodating outsiders in rural occupations.	Large industries, production for global consumption, accommodating outsiders.
Large proportion of vocations running in the family	Less proportion of vocations running in the family.
Priority to the head of the family and to the family as an institution. Joint family system.	Family secondary, priority to individuals. Trend towards – nuclear families.

Complete the web diagram

Question 1.
Answer:

Question 2.
Answer:

Write short notes:

Question 1.
Rural Development
Answer:
(i) In 1961, 82% of India’s population resided in villages.

(ii) In 1971, the percentage was 80.01%. So far, the rural area has shouldered the responsibility of providing food grains and other raw material to urban areas, supplying labour to the industrial sectors of the city, and taking care of natural resources.

(iii) There are three major challenges with reference to rural development, namely, bringing about economic development, developing facilities to meet social needs and finally bringing about a change of attitude in matters concerning society, culture and ways of thinking.

(iv) It is equally necessary to expedite irrigation projects and bring about land reforms.

Question 2.
Social Welfare
Answer:
(i) The objective to establish the welfare state has been incorporated in the Constitution itself. India is the first country in the world to do so.

(ii) The social welfare programmes aim to make opportunities for full-time employment, health care, education and development available to all Indian citizens.

(iii) It is necessary that opportunities for development reach women, children, the differently abled, the scheduled castes and tribes as well as other minorities.

(iv) This was the greatest challenge facing the government during the post-independence period

(v) That is why, on 14 June 1964, the government of India constituted the Ministry of Social Welfare.

(vi) Under this ministry various programmes are implemented for nutrition and child development, social security and social protection, women’s welfare and development.

Question 3.
Kidney transplant
Answer:
(i) Since kidney transplant can now be performed in India, doctors have succeeded in saving patients’ lives. Such surgeries were not so common in India till 1971.

(ii) But in 1971, it was successfully performed at the Christian Medical College hospital at Vellore in Tamil Nadu.

(iii) Dr. Johny and Dr. Mohan Rao transplanted the kidney donated by a living person into the patient’s body.

(iv) Nowadays, patients from underdeveloped countries come to India for such surgeries.

Question 4.
Test-tube baby
Answer:
(i) Right from early times, having a baby is considered to be of utmost importance in the Indian family system.
(ii) The support of ‘test-tube baby’ technology has been available to childless couples since 1978.
(iii) It was under the supervision of Dr. Subhash Mukhopadhyaya that the experiment of the test-tube baby was successfully carried out at Kolkata.
(iv) This was the first successful attempt at artificial conception. A girl named Durga was born.
(v) This technology helped to solve the problem of childless couples who wanted children.

Explain statements with reason:

Question 1.
Rural electrification is essential.
Answer:
Rural electrification is essential because:

(i) Electricity is essential for the development of rural areas. Automatic pumps are needed to water the fields.

(ii) Electricity is also needed to preserve perishable food items such as milk, eggs, fruits, and vegetables, to run fertilizer projects and for fans and TV, and for lights for studying at night.

(iii) During the first five-year plan, electricity had been provided to three thousand villages in India. By 1973, it reached 1,38,646 villages. From 1966, it was decided to supply more electricity for pumps and borewells.

(iv) ‘Rural Electrification Corporation’ was established in 1969.

Question 2.
It is necessary to give special attention to rural areas.
Answer:
(i) It is necessary to give priority to facilities for public hygiene and health-care.

(ii) Even today the rural population faces problems related to year round provision of drinking water, toilets, open drainage, narrow roads, inadequate electrification and lack of facilities for medical treatment.

(iii) There is a lack of good quality educational facilities from primary level to higher education, centres for recreation and libraries. That is why it is necessary to give special attention to rural areas.

Question 3.
The Rural Local Self-Government was empowered with more authority.
Answer:
(i) Keeping in mind the goal of rural development, the collective development scheme has come into force.

(ii) Plans were made for improving farming technology, increasing the area of irrigated land, extending educational facilities, enacting the laws for land reform under this scheme.

(iii) It also aimed at increasing agricultural produce as well as expanding the means of transport, health services and scope for education in the rural areas.

(iv) The government undertook this work through the medium of Gram Panchayats which included the people from all castes and tribes.

(v) To achieve this, the Gram Panchayats, Panchayat Samitis and Zilla Parishads were empowered with more authority.

Read the following passage and answer the questions below:

Public health: The Constitution of India states that ‘ the primary duty of the government is to raise the people’s standard of living, to ensure proper nutrition i and to improve public health. The ministry of health i and Social Welfare at the Centre helps the state governments in this regard. To make primary health services as well as medical care available to rural people, the tribals and the poor was an objective of the Sixth Five Year plan. Efforts were made towards helping people maintain good health by giving recognition to Unani, Homoeopathy, Ayurveda and Naturopathy in addition to Allopathy, Progress in the medical field has made the life of Indians relatively free of health concerns. In 1962, the first successful open heart surgery was performed under the leadership of Dr. N. Gopinath at Christian Medical College Hospital at Vellore in Tamil Nadu, Hence, it is no longer necessary to go abroad for such treatment.

Question 1.
Prepare a concept map of recognised health care and medical treatments in India.
Answer:

Question 2.
Who was Dr. N. Gopinath? State his achievement?
Answer:
Dr. N. Gopinath was an experienced surgeon at Christian Medical College Hospital of Vellore under whose leadership an Open Heart Surgery was performed for the first time in India in 1962.

Question 3.
Which disease among children do you consider most threatful? Why?
Answer:
I would consider Polio as one of the most threatening diseases. It renders an infant physically impaired or incapacitated for life. Without physical development, it is not possible for a child to lead a normal life. He/she becomes dependent on others for daily chores and cannot become self-reliant.

Answer the following questions in detail:

Question 1.
State the achievements of Christian Medical College Hospital.
Answer:
(i) In 1962, the first successful open heart surgery was performed under the leadership of Dr. N. Gopinath at Christian Medical College Hospital at Vellore in Tamil Nadu.

(ii) In 1971, kidney transplant was successfully performed at the Christian Medical College hospital at Vellore in Tamil Nadu. Dr Johny and Dr Mohan Rao transplanted the kidney donated by a living person into the patient’s body.

Question 2.
Explain, how ‘Jaipur Foot’ has transformed the lives of the disabled in India?
Answer:
(i) The invention of the ‘Jaipur Foot’ has transformed the lives of the disabled in India. Before 1968, if a person lost a leg in an accident, he had to suffer for the rest of his life.

(ii) In order to remedy the situation, Dr Pramod Sethi designed and manufactured artificial limbs, noses and ears, with the help of the skilled craftsman Ramchandra Sharma.

(iii) These artificial body parts manufactured with the help of the Jaipur foot technology have made it easy for the differently abled to walk bare-foot on rough surfaces, rim, go cycling, work in the fields, climb trees, and even climb mountains, etc.

(iv) They save on the expenses on shoes as there is no need for footwear on these artificial limbs. They can bend their legs at the knees and sit cross-legged.

(v) These feet are also convenient while working in water or wet conditions.

Question 3.
What measures were taken up to uplift the scheduled castes and tribes?
Answer:
(i) According to the 1971 Census, 22% people in India belonged to scheduled castes and tribes.

(ii) Laws were enacted so that they got educational scholarships, and representation in Parliament as well State Assemblies. Some seats are also reserved for them in Government services.

Question 4.
Give an account of the collective development scheme that was featured in the first four Five Year Plans.
Answer:
(i) The collective development scheme had an important place in all the first four five year plans of the government of India.

(ii) The State of Maharashtra registered remarkable achievements under this scheme. For example, ‘Zilla Parishads’ was established in 1962.

(iii) Nutritious diet scheme was launched in 1970-1971. The State also started the ‘Rural Water Supply Scheme’ for sinking wells and providing piped water.

(iv) By 1971,1677 small dams had also been built.

Balbharti Maharashtra State Board Class 9 Science Solutions Chapter 2 Work and Energy Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Science Solutions Chapter 2 Work and Energy

Class 9 Science Chapter 2 Work and Energy Textbook Questions and Answers

1. Write detailed answers?

a. Explain the difference between potential energy and kinetic energy.
Answer:

Kinetic Energy	Potential Energy
(i) Kinetic energy is the energy possessed by the body due to its motion.	(i) Potential energy is the energy possessed by the body because of its shape or position.
(ii) K.E = 1/2 mv2	(ii) P.E = mgh
(iii) e.g., flowing water, such as when falling from a waterfall.	(iii) e.g., water at the top of a waterfall, before the drop.

b. Derive the formula for the kinetic energy of an object of mass m, moving with velocity v.
Answer:
Suppose a stationary object of mass ‘m’ moves because of an applied force. Let ‘u’ be its initial velocity (here u = 0). Let the applied force be ‘F’. This generates an acceleration a in the object, and after time T, the velocity of the object becomes equal to ‘v’. The displacement during this time is s. The work done on the object is
W = F x s ……………….. (1)
Using Newton’s 2nd law of motion,
F = ma ……………….. (2)
Using Newton’s 2nd equation of motion
\(s=u t+\frac{1}{2} a t^{2}\)
However, as initial velocity is zero, u = 0

c. Prove that the kinetic energy of a freely falling object on reaching the ground is nothing but the transformation of its initial potential energy.
Answer:
Let us look at the kinetic and potential energies of an object of mass (m), falling freely from height (h), when the object is at different heights.

As shown in the figure, the point A is at a height (h) from the ground. Let the point B be at a distance V, vertically below A. Let the point C be on the ground directly below A and B. Let us calculate the energies of the object at A, B and C.

(1) Let the velocity of the object be v_B when it reaches point B, having fallen through a distance x.

(2) When the object is stationary at A, its initial velocity is u = 0
∴ K.E = 1/2 mass x velocity2

(3) Let the velocity of the object be vc when it reaches the ground, near point C.

From equations (i) and (iii) we see that the total potential energy of the object at its initial position is the same as the kinetic energy at the ground.

d. Determine the amount of work done when an object is displaced at an angle of 300 with respect to the direction of the applied force.
Answer:
When an object is displaced by displacement ‘s’ and by applying force ‘F’ at an ’angle’ 30°. work done can be given as

e. If an object has 0 momenta, does it have kinetic energy? Explain your answer.
Answer:

• No, it does not have kinetic energy if it does not have momentum.
• Momentum is the product of mass and velocity. If it is zero, it implies that v = 0 (since mass can never be zero).
• Now K.E = ~ mv2, So if v = 0 then K.E also will be zero.
• Thus, if an object has no momentum then it cannot possess kinetic energy.

f. Why is the work done on an object moving with uniform circular motion zero?
Answer:

• In uniform circular motion, the force acting on an object is along the radius of the circle.
• Its displacement is along the tangent to the circle. Thus, they are perpendicular to each other.
  Hence θ = 90° and cos 90 = θ
  ∴ W = Fs cos θ = 0

2. Choose one or more correct alternatives.

a. For work to be performed, energy must be ….
(i) transferred from one place to another
(ii) concentrated
(iii) transformed from one type to another
(iv) destroyed

b. Joule is the unit of …
(i) force
(ii) work
(iii) power
(iv) energy

c. Which of the forces involved in dragging a heavy object on a smooth, horizontal surface, have the same magnitude?
(i) the horizontal applied force
(ii) gravitational force
(iii) reaction force in vertical direction
(iv) force of friction

d. Power is a measure of the …….
(i) the rapidity with which work is done
(ii) amount of energy required to perform the work
(iii) The slowness with which work is performed
(iv) length of time

e. While dragging or lifting an object, negative work is done by
(i) the applied force
(ii) gravitational force
(iii) frictional force
(iv) reaction force

3. Rewrite the following sentences using a proper alternative.

a. The potential energy of your body is least when you are …..
(i) sitting on a chair
(ii) sitting on the ground
(iii) sleeping on the ground
(iv) standing on the ground
Answer:
(iii) sleeping on the ground

b. The total energy of an object falling freely towards the ground …
(i) decreases
(ii) remains unchanged
(iii) increases
(iv) increases in the beginning and then decreases
Answer:
(iii) increases

c. If we increase the velocity of a car moving on a flat surface to four times its original speed, its potential energy ….
(i) will be twice its original energy
(ii) will not change
(iii) will be 4 times its original energy
(iv) will be 16 times its original energy.
Answer:
(ii) will not change

d. The work done on an object does not depend on ….
(i) displacement
(ii) applied force
(iii) initial velocity of the object
(iv) the angle between force and displacement.
Answer:
(iii) initial velocity of the object

4. Study the following activity and answer the questions.

1. Take two aluminium channels of different lengths.
2. Place the lower ends of the channels on the floor and hold their upper ends at the same height.
3. Now take two balls of the same size and weight and release them from the top end of the channels. They will roll down and cover the same distance.

Questions
1. At the moment of releasing the balls, which energy do the balls have?
2. As the balls roll down which energy is converted into which other form of energy?
3. Why do the balls cover the same distance on rolling down?
4. What is the form of the eventual total energy of the balls?
5. Which law related to energy does the above activity demonstrate? Explain.
Answer:
1. At the moment of releasing the ball they possess Potential energy as they are at a height above the ground.
2. As the balls roll down, the Potential energy is converted into Kinetic energy since they are now in motion.
3. Since they have been released from the same height, they will cover the same distance.
4. The eventual form of the total energy of the balls is “Mechanical Energy” i.e, a combination of Potential energy and Kinetic energy
5. The above activity demonstrates the “Law of Conservation of Energy”

5. Solve the following examples.

a. An electric pump has 2 kW power. How much water will the pump lift every minute to a height of 10 m? (Ans : 1224.5 kg)
Answer:
Given:
Power (P) = 2 kW = 2000 W
Height (h) = 10 m
Time (t) = 1 min = 60 s
Acceleration due to gravity (g) = 9.8 m/s²
To Find:
Mass of water (m)= ?
Formula:

Water lifted by the pump is 1224.5 kg

b. If the energy of a ball falling from a height of 10 metres is reduced by 40%, how high will it rebound? (Ans : 6 m)
Answer:
Given: Initial height (h₁) = 10m
Let Initial (P.E₁) = 100
Final (P.E₂) = 100 – 40
= 60

To Find:
Final height (h₂) = ?
Formula:
P.E. = mgh
Solution:

The ball will rebound by 6 m.

d. The velocity of a car increase from 54 km/hr to 72 km/hr. How much is the work done if the mass of the car is 1500 kg? (Ans. : 131250 J)
Answer:


Work done to increase the velocity = 131250 J

e. Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi? (Ans: 3 J)
Answer:
Given:
Force (F) = 10 N
θ = 0°, (Since force and displacement are in same direction)
Displacement (s) = 30 cm = 30/100 m
To Find:
Work (W) = ?
Formula:
W = Fs cos θ
Solution:
W = Fs cos θ
Solution:
The work done by Ravi is 3J

Numericals For Practice

Class 9 Science Chapter 1 Laws of Motion Intext Questions and Answers

Question 1.
What are different types of forces? Give examples.
Answer:
Forces are of two types.

• Contact force e.g.: Mechanical force, frictional force, muscular force
• Non-contact force e.g.: gravitational force, magnetic force, electrostatic force

Question 2.
Monashee wants to displace a wooden block from point A to point B along the surface of a table as shown. She has used force F for the purpose.

(a) Has all the energy she spent been used to produce an acceleration in the block?
(b) Which forces have been overcome using that energy?
Answer:
(a) Only part of the energy applied by Minakshee is used in accelerating the block.
(b) Force of friction has been overcome using the energy.

Question 3.
Mention the type of energy used in the following examples.
(i) Stretched rubber string.
(ii) Fast-moving car.
(iii) The whistling of a cooker due to steam.
(iv) A fan running on electricity.
(v) Drawing out pieces of iron from garbage, using a magnet.
(vi) Breaking of a glass window pane because of a loud noise.
(vii) The drackers exploded in Diwali.
Answer:
(i) Potential energy
(ii) Kinetic energy
(iii) Sound energy
(iv) Electrical energy
(v) Magnetic energy
(vi) Sound energy
(vii) Sound energy, light energy and heat energy

Question 4.
Study the pictures given below and answer the questions:

(a) In which of the pictures above has work been done?
(b) From scientific point of view, when do we say that no work was done?
Answer:
(a) Girl studying : No work done
Boy playing with ball: Work is done
Girl watching T.V.: No work done Person lifting sack of grains : Work is done
(b) No work is said to be done when force is applied but there is no displacement.

Question 5.
Make two pendulums of the same length with the help of thread and two nuts. Tie another thread in the horizontal position.

Tie the two pendulums to the horizontal thread in such a way that they will not hit each other while swinging. Now swing one of the pendulums and observe. What do you see?

Answer:
You will see that as the speed of oscillation of the pendulum slowly decreases, the second pendulum which was initially stationary, begins to swing. Thus, one pendulum transfers its energy to the other.

Question 6.
Ajay and Atul have been asked to determine the potential energy of a ball of mass m kept on a table as shown in the figure. What answers will they get? Will they be different? What do you conclude from this?

Answer:

• According to Ajay P.E₁ = mgh₁ and according to Atul P.E₂ = mgh₂.
• Yes, the answer will be different as the two heights are different.
• Potential energy is relative.

Question 7.
Discuss the directions of force and of displacement in each of the following cases.
(i) Pushing a stalled vehicle.
(ii) Catching the ball which your friend has thrown towards you.
(iii) Tying a stone to one end of a string and swinging it round and round by the other end of the string.
(iv) Walking up and down a staircase; climbing a tree.
(v) Stopping a moving car by applying brakes.
Answer:
(i) Force and displacement are in the same direction.
(ii) Force and displacement are in the opposite direction.
(iii) Force and displacement are perpendicular to each other.
(iv) Force and displacement are in the opposite direction.
(v) Force and displacement are in the opposite direction.

Question 8.
(A) An arrow is released from a stretched bow.
(B) Water kept at a high flows through a pipe into the tap below.
(C) A compressed spring is released.
(a) Which words describe the state of the object in the above examples?
(b) Where did the energy required to cause the motion of the objects come from?
(c) If the obj ects were not brought in those states, would they have moved?
Answer:
(a) Words such as stretched bow, water kept at a height and compressed spring describe the state of the objects.
(b) The energy required for the objects came from its specific state or motion in the form of potential energy.
(c) No, if the objects were not brought in those states, they would have not moved.

Question 9.
Study the activity and answer the following questions.

(a) Figure A – Why does the cup get pulled?
(b) Figure B – What is the relation between the displacement of the cup and the force applied through the ruler?
(c) In Figure C-Why doesn’t the cup get displaced?
(d) What is the type of work done in figures A, B and C?
(e) In the three actions above, what is the relationship between the applied force and the displacement?
Answer:
(a) The cup gets pulled as the force of the nut and the displacement of the cup is in the same direction.
(b) The displacement of the cup and the force applied through the ruler is in the opposite direction.
(c) Tire cup does not get displaced as two equal forces are working in opposite directions.
(d) The work done in figure A is positive, figure B is negative and in figure C is zero.
(e) In figure A the applied force and the displacement is in the same direction, in figure B the applied force and the displacement is in the opposite direction and in figure C the applied force and displacement is perpendicular to each other.

Question 10.
From the following activities find out whether work is positive, negative or zero. Give reasons for your answers.
(a) A boy is swimming in a pond.
(b) A coolie is standing with a load on his head.
(c) Stopping a moving car by applying brakes.
(d) Catching the ball which you friend has thrown towards you.
Answer:
(a) A boy is swimming in a pond: The work done is positive because the direction of applied force and displacement are the same.
(b) A coolie is standing with a load on his head: The work done is zero because the applied force does not cause any displacement.
(c) Stopping a moving car by applying brakes: The work done is negative because the fore applied by the brakes acts in a direction opposite to the direction of motion of car.
(d) Catching the ball which you friend has thrown towards you : Negative work because the force required to stop the ball, acts opposite to the displacement of the ball.

Question 11.
(a) Can your father climb stairs as fast as you can?
(b) Will you fill the overhead water tank with the help of a bucket or an electrical motor?
(c) Suppose Raj ashree, Yash and Ranjeet have to reach the top of a small hill. Raj ashree went by car. Yash went cycling while Ranjeet went walking. If all of them choose the same path, who will reach first and who will reach last? (Think before you answer.
Answer:
(a) No, father takes more time to climb stairs.
(b) Overhead water tank can be filled with the help of one electric motor rather than filling it with bucket.
(c) Raj ashree will reach first, followed by Yash and Ranjeet will reach last because car moves faster than a cycle and a person walking.

Class 9 Science Chapter 1 Laws of Motion Additional Important Questions and Answers

1. Choose and write the correct option:

Question 1.
Forces are of …………………… types.
(a) 2
(b) 3
(c) 4
(d) 5
Answer:
(a) 2

Question 2.
Example of Contact force is ………………….. .
(a) Gravitational Force
(b) Magnetic Force
(c) Electrostatic Force
(d) Muscular Force
Answer:
(d) Muscular Force

Question 3.
Example of Non-contact force is ………………….. .
(a) Mechanical Force
(b) Frictional Force
(c) Muscular Force
(d) Electrostatic Force
Answer:
(d) Electrostatic force

Question 4.
Work is said to be done on a body when a …………………… is applied on object causes displacement of the object.
(a) Direction
(b) Area
(c) Volume
(d) Force
Answer:
(d) force

Question 5.
W = ………………. .
(a) mgh
(b) mdh
(c) mv²
(d) mfe
Answer:
(a) mgh

Question 6.
The energy stored in the dry cell is in of ………………. energy.
(a) Light
(b) Chemical
(c) Solar
(d) Kinetic
Answer:
(b) chemical

Question 7.
The work done is zero if there is no ……………… .
(a) Direction
(b) Displacement
(c) Mass
(d) Angle
Answer:
(b) displacement

Question 8.
Flowing water has ………………. energy.
(a) Potential
(b) Chemical
(c) Solar
(d) Kinetic
Answer:
(d) kinetic

Question 9.
By stretching the rubber strings of a we store ………………. energy in it.
(a) Potential
(b) Chemical
(c) Electric
(d) Kinetic
Answer:
(a) potential

Question 10.
………………. is the unit of force.
(a) Both B and C
(b) Newton
(c) Dyne
(d) Volts
Answer:
(a) Both B and C

Question 11.
For a freely falling body, kinetic energy is ………………. at the ground level.
(a) Maximum
(b) Minimum
(c) Neutral
(d) Reversed
Answer:
(a) Maximum

Question 12.
Energy can neither be ………………. nor ……………… .
(a) Destroyed
(b) Created
(c) Saved
(d) Both A and B
Answer:
(d) Both A and B

Question 13.
Work and …………………… have the same unit.
(a) Energy
(b) Electricity
(c) Force
(d) Both B and C
Answer:
(a) Energy

Question 14.
S.I. unit of energy is ………………….. .
(a) Joule
(b) Ergs
(c) m/s²
(d) Both A and B
Answer:
(a) Joule

Question 15.
Work is the product of ………………….. .
(a) force and distance
(b) displacement and velocity
(c) kinetic and potential energy
(d) force and displacement
Answer:
(d) force and displacement

Question 16.
S.I. unit of work is ………………….. .
(a) dyne
(b) newton-meter or erg
(c) N/m2 or joule
(d) newton-meter or joule
Answer:
(d) newton-meter or joule

Question 17.
…………………… is the capacity to do work.
(a) Energy
(b) Force
(c) Power
(d) Momentum
Answer:
(a) Energy

Question 18.
Kinetic energy of a body (KE) = ………………….. .
(a) mv²
(b) ¹/₂ mv²
(c) mgh
(d) Fs
Answer:
(b) ¹/₂ mv²

Question 19.
Potential energy of a body is given by (P.E.) = ………………….. .
(a) Fs
(b) mgh
(c) ma
(d) mv²
Answer:
(b) mgh

Question 20.
1 hp = ………………….. .
(a) 476 watts
(b) 746 watts
(c) 674 watts
(d) 764 watts
Answer:
(b) 746 watts

Question 21.
…………………… is the commercial unit of power.
(a) kilowatt second
(b) dyne
(c) kilowatt
(d) erg
Answer:
(c) kilowatt

Question 22.
1 kWh = …………………… joules.
(a) 3.6 x 10³
(b) 3.6 x 10⁶
(c) 6.3 x 10⁶
(d) 6.3 x 10³
Answer:
(b) 3.6 x 10⁶

Based on Practicals

Question 23.
The work done by a force is said to be …………………… when the applied force does not produce displacement.
(a) positive
(b) negative
(c) zero
(d) none of these
Answer:
(c) zero

Question 24.
When some unstable atoms break up, they release a tremendous amount of …………………… energy.
(a) chemical
(b) potential
(c) nuclear
(d) mechanical
Answer:
(c) nuclear.

Name the following:

Question 1.
Unit of energy used for commercial purpose.
Answer:
Kilowatt-hour kW h is the unit of energy used for commercial purpose.

Question 2.
Unit used in industry to measure power.
Answer:
Horse power (hp) is the unit used in industry to express power.

Question 3.
SI unit of energy.
Answer:
SI unit of energy is Joule (J).

Question 4.
Two types of mechanical energy.
Answer:
Potential energy and kinetic energy are the two types of mechanical energy.

Question 5.
An example where force acting on an object does not do any work.
Answer:
In a simple pendulum, the gravitational force acting on the bob does not do any work as there is no displacement in the direction of force.

Question 6.
The relationship between 1 joule and 1 erg.
Answer:
1 joule = 107 erg.

Question 7.
Various forms of energy
Answer:
The various forms of energy are mechanical, heat, light, sound, electro-magnetic, chemical, nuclear and solar.

State whether the following statements are true or false:

(1) The potential energy of a body of mass 1 kg kept at height 1 m is 1 J.
(2) Water stored at some height has potential energy.
(3) Unit of power is joule.
(4) Mechanical energy can be converted into electrical energy.
(5) Work is a vector quantity.
(6) Power is a scalar quantity.
(7) The kilowatt hour is the unit of energy.
(8) The CGS unit of energy is dyne.
(9) The SI unit of work is newton.
(10) Kinetic energy has formula – mv²
Answer:
(1) False
(2) True
(3) False
(4) True
(5) False
(6) True
(7) True
(8) False
(9) False
(10) True

Find the odd man out.

Question 1.
Work, Energy, Power, Force.
Answer:
Force.

Question 2.
A stretched spring, A body placed in at some height, A bullet fired from gun.
Answer:
A bullet fired from gun.

Question 3.
A stretched spring, A rock rolling downhill, A bullet fired from gun.
Answer:
A stretched spring.

Write the formula of the following.

Question 1.
Kinetic energy
Answer:
\(\frac{1}{2}\)mv²

Question 2.
Potential energy
Answer:
mgh

Question 3.
Work
Answer:
Fs or Fs cosθ

Question 4.
Force
Answer:
ma

Question 5.
Power
Answer:
\(\frac{w}{1}\)

One line answer.

Question 1.
(i) When is work done said to be zero?
Answer:
Work done is zero when force acting on the body and its displacement are perpendicular to each other.

(ii) Which quantities are measured in ergs?
Answer:
Work and energy are measured in ergs.

(iii) What is the relationship between newton, meter and joule?
Answer:
1 joule = 1 newton x 1 meter

(iv) What is energy?
Answer:
The ability of a body to do work is called energy.

(v) Give 4 examples of energy
Answer:
Solar, wind, mechanical and heat.

(vi) Which device converts electrical energy into heat?
Answer:
Electric water heater (Geyser) converts electrical energy into heat.

(vii) What is the relationship between second, horsepower and joule?
Answer:
1 horse power = \(\frac{746 \text { joules }}{1 \text { second }\)

Question 2.
Find whether work is positive, negative or zero.

(a) Person moving along circle from A to B.
Answer:
Work done is positive as direction of applied force and displacement are the same.

(b) Person completing one circle and returns to position A.
Answer:
Work done is zero because there is no displacement for the person.

(c) Person pushing a car in the forward direction.
Ans,
Work done is positive as the motion of car is in the direction of the applied force.

(d) A car coming downhill even after pushing it in the opposite uphill direction.
Ans,
Work done is negative as the motion of car is in opposite direction of the applied force.

(e) Motion of the clock pendulum.
Answer:
work done is zero as there is no displacement of the pendulum and it comes back to its original position.

Give Scientific reasons:

Question 1.
A moving ball hits a stationary ball and displaces it.
Answer:

• The moving ball has certain energy.
• When it hits the stationary ball, the energy is transferred to the stationary ball, because of which it moves.
• Hence, a moving ball hits a stationary ball and displaces it.

Question 2.
Flowing water from some height can rotate turbine.
Answer:

• Flowing water has certain energy.
• When it hits the turbine, energy is transferred to the turbine, because of which it rotates.
• Hence, flowing water from some height can rotate a turbine.

Question 3.
A stretched rubber band when released regains its original length.
Answer:

• When we stretch a rubber band we give energy to it.
• This energy is stored in it.
• Hence, when we release it, it regains its original length.

Question 4.
Wind can move the blades of a windmill.
Answer:

• Wind has certain energy.
• When it hits the windmill energy is transferred to the windmill because of which it moves.
• Hence, wind can move the blades of a wind mill.

Question 5.
An exploding firecracker lights up as well as makes a sound.
Answer:

• The exploding firecracker converts the chemical energy stored in it into light and sound respectively.
• Here, energy is converted from one type to another.
• Hence, an exploding firecracker lights as well as makes a sound.

Question 6.
Work done on an artificial satellite by gravity is zero while moving around the earth.
Answer:

• When the artificial satellite moves around the earth in a circular orbit, gravitation force acts on it.
• The gravitational force acting on the satellite and its displacement are perpendicular to each other. i.e. 0 = 90°
• For 0 = 90°, work done is zero. [ v cos 90 = 0)
• Hence, work done on an artificial satellite by gravity is zero while moving around the earth.

Difference between :

Question 1.
Work and Power:
Answer:

Work	Power
(i) Work is the product of force and displacement. (ii) Work is given by the formula : W = Fs (iii) MKS unit – joule, CGS unit-erg	(i) Power is the rate of doing work. (ii) Power is given by the formula : \(\mathrm{P}=\frac{\mathrm{W}}{\mathrm{t}}\) (iii) MKS unit – joule/sec, CGS unit – erg/sec

Question 2.
Work and Energy:
Answer:

Work	Energy
(i) It is the product of the magnitude of the force acting on the body and the displacement of the body in the direction of the force. (ii) It is the effect of energy.	(i) It is the capacity to do work. (ii) It is the cause of work.

Solve the following:

Type – A

Formula:
W = Fs cosθ
If force and displacement are in same direction, then θ = 0°, and cos θ = 1
If force and displacement are in opposite direction, then θ = 180°, and cos θ = -1
If force and displacement are perpendiculars, then θ = 90°, and cos θ = 0

Question 1.
Pravin has applied a force of 100 N on an object, at an angle of 60° to the horizontal. The object gets displaced in the horizontal direction and 400 J work is done. What is the displacement of the object? (cos 600 =12)
To Find:
Displacement (s) = ?
Formula:
W = Fs cos θ
Solution:

The object will be displaced through 8 m.

Question 2.
A force of 50 N acts on an object and displaces it by 2 m. If the force acts at an angle of 60° to the direction of its displacement, find the work done.
Answer:
50 J

Question 3.
Raj applied a force of 20 N and moved a book 40 cm in the direction of the force. How much was the work done by Raj?
Answer:
8J

Type -B

Formula:
1) W = K.E = 1/2 mv2
2) W = P.E = mgh
• W = P.E, W = K.E
1 km/hr =
\(\frac{1000}{3600} \mathrm{~m} / \mathrm{s}=\frac{5}{18} \mathrm{~m} / \mathrm{s}\)

Question 4.
A stone having a mass of 250 gm is falling from a height. How much kinetic energy does it have at the moment when its velocity is 2 m/s?
Answer:


The kinetic energy of the stone is 0.5 J

Question 5.
500 kg water is stored in the overhead tank of a 10 m high building. Calculate the amount of potential energy stored in the water.
Answer:
Given:
Mass (m) = 500 kg
Height (h) = 10 m
Acceleration due to gravity (g) = 9.8 m/s²
To Find:
Potential energy (P.E) = ?
Formula:
P.E = mgh
Solution:
P.E = mgh
= 500 x 9.8 x 10
= 500 x 98
= 49000J
The P.E of the stored water is 49000 J

Question 6.
Calculate the work done to take an object of mass 20 kg to a height of 10 m. (g = 9.8 m/s²)
Answer:
Given:
Mass (m) = 20 kg
Acceleration due to gravity (g) = -9.8 m/s²
Displacement (s) = (h) = 10 m.
To Find:
Work done (W) = ?
Formula:
(i) W = P.E = mgh
Solution:
W = mgh
= 20 x (-9.8) x 10
= -1960J
The work done to take an object of mass 20 kg to a height of 10 m is -1960 J.

Question 7.
A body of 0.5 kg thrown upwards reaches a maximum height of 5 m. Calculate the work done by the force of gravity during this vertical displacement.
Answer:
Given:
Mass (m) = 0.5 kg
Acceleration due to gravity (g) = -9.8 m/s²
Displacement (s) = 5 m.
To Find:
Work done (W) = ?
Formula:
W = P.E = mgh
Solution:
W = mgh
= 0.5 x (-9.8) x 5
= -24.5 J
The work done by the force of gravity is -24.5 joule.

Question 8.
1 kg mass has a kinetic energy of 2 joule. Calculate its velocity.
Answer:
Given:
Mass (m) = 1 kg
Kinetic Energy (K.E) = 2 J
To Find:
Velocity (v) = ?
Formula:

The velocity is 2 m/s

Question 9.
A rocket of mass 100 tonnes is propelled with a vertical velocity 1 km/s. Calculate kinetic energy.
Answer:

The kinetic energy of the rocket is 5 x 10¹⁰ J

Type – C

Formula:
\(\text { 1) Power }=\frac{\text { work }}{\text { time }}=\frac{\text { mgh }}{t}\)

Power should be expressed in kW
Time should be expressed in hours
1 k Wh = 1 unit

Question 10.
Swaralee takes 20 s to carry a bag weighing 20 kg to a height of 5 m. How much power has she used?
Given:
Mass (m) = 20 kg
Height (h) = 5 m
Time (t) = 20s
Acceleration due to gravity (g) = 9.8 m/s²
To Find:
Power (P) = ?
Formula:
\(\mathrm{P}=\frac{\mathrm{mgh}}{\mathrm{t}}\)
Solution:
\(\begin{aligned}
P &=\frac{m g h}{t} \\
&=20 \times 9.8 \times \frac{5}{20} \\
&=9.8 \times 5
\end{aligned}\)
= 49 W
Power used by Swaralee is 49 W

Write notes on the following:

Question 1.
Derive the expression for potential energy.
Answer:
(i) To carry an object of mass ‘m’ to a height ‘h’ above the earth’s surface, a force equal to ‘mg’ has to be used against the direction of the gravitational force.

(ii) The amount of work done can be calculated as follows:
Work = force x displacement
∴ W = mg x h
∴ W = mgh

(iii) The amount of potential energy stored in the object because of its displacement.
PE = mgh (W = P.E)

(iv) Displacement to height h causes energy equal to mgh to be stored in the object.

Question 2.
When can you say that the work done is either positive, negative or zero?
Answer:

• When the force and the displacement are in the same direction, the work done by the force is positive.
• When the force and displacement are in the opposite directions, the work done by the force is negative.
• When the applied force does not cause any displacement or when the force and the displacement are perpendicular to each other, the work done by the force is zero.

Question 3.
Explain the relation between, the commercial and SI unit of energy.
Answer:
The commercial unit of energy is a kilowatt-hour (kWh) while the SI unit of energy is the joule. Their relation is
1 kWh = 1kW x 1hr
= 1000 Wx 3600 s
= 3600000J
(Watt x Sec = Joule)
1 kWh = 3.6 x 106 J.

Question 4.
How is work calculated if the direction of force and the displacement are inclined to each other?
Answer:
If the direction of force and the displacement are inclined to each other then, we must convert the applied force into the force acting along the direction of displacement.

If θ is angle between force and displacement, then force (F₁) in direction of displacement is

Complete the flow chart.

Question 1.
Transformation of energy

Answer:

Question 2.
Transformation of energy

Answer:

Write effects of the following with examples.

Question 1.
Force
Answer:

• A force can move a stationary object. The force of engine makes a stationery car to move.
• A force can stop a moving object. The force of brakes can stop a moving car.
• A force can change the speed of a moving object. When a hockey player hits a moving ball, the speed of ball increases.
• A force can change the direction of a moving object. In the game of carrom ,when we take a rebound then the direction of striker changes because the edge of the carrom board exerts a force on the strike.
• A force can change the shape and size of an object. The shape of kneaded wet clay changes when a potter converts it into pots of different shapes and sizes because the p otter applies force on the kneaded wet clay.

Give two examples in each of the following cases:

Question 1.
Potential energy
Answer:

• Water stored in a dam
• A compressed spring

Question 2.
Kinetic energy
Answer:

• Water flowing
• Bullet fired from a gun

Question 3.
Chemical energy
Answer:

• Chemical in cell
• Explosive mixture of a bomb

Question 4.
Zero work done
Answer:

• A stone tied to a string and whirled in a circular path
• Motion of the earth and other planets moving around the sun

Question 5.
Negative work done
Answer:

• A cyclist applies brakes to his bicycle, but the bicycle still covers some distance.
• When a body is made to slide on a rough surface, the work done by the frictional force.

Question 6.
Positive work done
Answer:
(i) A boy moving from the ground floor to the first floor.
(ii) A fruit falling down from the tree.
= 0.5 hr x 30 days
= 15 hrs
To Find:
Energy consumed = ?

The units of energy consumed in the month of April by the iron is 18 units.

Question 7.
A 25 W electric bulb is used for 10 hours every day. How much electricity does it consume each day?
Answer:
Given:
Power (P) = 25 W
25/1000 kW
Time (E) = 10 hrs
To Find:
Electric energy consumed = ?
Formula:
Electric energy consumed = power x time
Solutions:
Electric energy consumed = power x time
= 25/1000 x 10
= 0.25 kWh
The electric bulb consumes 0.25 kWh of electricity each day.

Question 8.
If a TV of rating 100W is operated for 6 hrs per day, find the amount of energy consumed in any leap year?
Answer:

= 2196 hrs.
To Find:
Electric energy consumed
Formula:
Electric energy consumed = power x time
Solution:
Electric energy consumed = power x time
= 0.1 x 2196
= 219.6 kWh
The amount of energy consumed is 219.6 kWh

Complete the paragraph.

Question 1.
………….. is the measure of energy transfer when a force (F) moves an object through a ………….. (d). So when ………….. is done, energy has been transferred from one energy store to another, and so: energy transferred = ………….. done. Energy transferred and work done are both measured in ………….. (J)
Answer:
Work is the measure of energy transfer when a force (F) moves an object through a distance (d). So when work is done, energy has been transferred from one energy store to another, and so: energy transferred = work done. Energy transferred and work done are both measured in joules (J).

Question 2.
………….. energy and ………….. done are the same thing as much as ………….. energy and work done are the same thing. Potential energy is a state of the system, a way of ………….. energy as of virtue of its configuration or motion, while ………….. done in most cases is a way of channeling this energy from one body to another.
Answer:
Potential energy and work done are the same thing as much as kinetic energy and work done are the same thing. Potential energy is a state of the system, a way of storing energy as of virtue of its configuration or motion, while work done in most cases is a way of channeling this energy from one body to another.

Question 3.
In physics, ………….. is the rate of doing work or, i.e., the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the ………….. equal to one ………….. per second.

Power is a ………….. quantity that requires both a change in the physical system and a specified time interval in which the change occurs. But more ………….. is needed when the work is done in a shorter amount of time.
Answer:
In physics, power is the rate of doing work or, i.e., the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt. equal to one joule per second.

Power is a scalar quantity that requires both a change in the physical system and a specified time interval in which the change occurs. But more power is needed when the work is done in a shorter amount of time.

Activity-based questions

Answer in detail:

Question 1.
State the expression for work done when displacement and force makes an angle θ OR State the expression for work done when force is applied making an angle θ with the horizontal force.

Answer:
Let ‘F’ be the applied force and Fj be its component in the direction of displacement. Let ’S’ be the displacement.

The amount of work done is given by W = F₁s ……………………………………… (1)
The force ‘F’ is applied in the direction of the string.

Let ‘θ’ be the angle that the string makes with the horizontal. We can determine the component ‘F₁‘, of this force F, which acts in the horizontal direction by means of trigonometry.
\(\begin{aligned}
\cos \theta=\frac{\text { base }}{\text { hypotenuse }} \\
\therefore \quad \cos \theta=\frac{\mathrm{F}_{1}}{\mathrm{~F}} \\
\therefore \quad \mathrm{F}_{1}=\mathrm{F} & \cos \theta
\end{aligned}\)
Substituting the value of F₁ in equation 1
Thus, the work done by F₁ is
W cos θ s
∴ W = Fscosθ

Question 2.
When a body is dropped on the ground from some height its P.E is converted into K.E but when it strikes the ground and it stops, what happens to the K.E?
Answer:
When a body is dropped on the ground, its K.E appears in the form of:

• Heat (collision between the body and the ground).
• Sound (collision of the body with the ground).
• The potential energy of change in state of the body and the ground.
• Kinetic energy is also utilized to do work i.e., the ball bounces to a certain height and moves to a certain distance vertically and horizontally till Kinetic energy becomes zero.
• The process in which the kinetic energy of a freely falling body is lost in an unproductive chain of energy is called the dissipation of energy.

Question 3.
Explain the statement “Potential Energy is relative”.
Answer:

• The potential energy of an object is determined and calculated according to a height of the object with respect to the observer.
• So, the person staying on 6th floor more potential energy than those staying on the 3rd floor.
• But, the person on the 6th floor will have lesser potential energy than on the 8th floor. Hence potential energy is relative.

 

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 4 Economic Development Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 4 Economic Development

Class 9 History Chapter 4 Economic Development Textbook Questions and Answers

1.A Choose right option and write the sentence:

Question 1.
On 19th July, 1969 ______ major banks in India were nationalised.
(a) 12
(b) 14
(c) 16
(d) 18
Answer:
(b) 14

Question 2.
_________ declared a 20 – point programme.
(a) Pandit Nehru
(b) Lai Bahadur Shastri
(c) Indira Gandhi
(d) P.V. Narasimha Rao
Answer:
(c) Indira Gandhi

B. Identify the wrong pair and rewrite the corrected one:

Question 1.
(1) Kawasajee Dawar – Iron and Steel factory.
(2) Dr. Datta Samant – Leadership of mill workers.
(3) N. M. Lokhande – Holiday for mill workers.
(4) Narayan Surve – Depiction of lives of workers through poems.
Answer:
Wrong Pair : Kawasajee Dawar – Iron and Steel factory.

2.A Complete the following chart:

Question 1.

Five Year Plan	Duration	Purposes
First	……………….	Agriculture and Social Development
Second	1956 -1961	Industrialisation
Third	………………	Elimination of inequality, increasing opportunities for employment, increase in national income.
………….	1969 -1974	Scientific research, health and family planning.
Fifth	…………….	…………………..

Answer:

Five Year Plan	Duration	Purposes
First	1951 -1956	Agriculture and Social Development
Second	1956 -1961	Industrialisation
Third	1961 -1966	Elimination of inequality, increasing opportunities for employment, increase in national income.
Fourth	1969 -1974	Scientific research, health and family planning.
Fifth	1974 -1979	Making India economically self-sufficient by alleviating poverty.

B. Explain the concepts:

Question 1.
Mixed Economy
Answer:
(i) In a capitalist system, the means of production are privately owned. In a socialist economy, the means of production are owned by the State in the name of the society.
(ii) A mixed economy works both in the private and the public sector.
(iii) In order to achieve economic development of modem India, we gave preference to a model of ‘mixed economy’. We can see three parts in this kind of economy:

(a) Public Sector: The industries in this sector are completely under the control and management of the government. For example, production of defence equipment.

(b) Private Sector: The industries in this sector are owned by private industrialists. Of course, the government supervises and controls them too. For example, consumer goods.

(c) Joint Sector: In this sector, some industries are owned by private industrialists, while some are run under government management.

(iv) For mixed economy to run smoothly there is a need for co-ordination between the private sector and the public sector.
(v) This system aims at maximisation of production and popular participation on a large scale.
(vi) An effort has been made in this system to bring together the good aspects of both the capitalist and the socialist systems.
(vii) A mixed economy cannot ignore the profit motive, entrepreneurship, discipline, time bound planning, etc.

Question 2.
20 – Point Programme
Answer:
20-Point Programme: Prime Minister Indira Gandhi announced the 20-Point Programme on 1st July 1975 and resolved to make efforts towards rapidly becoming a developed nation. The main provisions of the 20 point programme are as follows:

• Land ceiling for cities and agricultural land, equal division of wealth, minimum wages for workers, increase in water conservation schemes.
• Workers’ participation in industry, national training scheme, freeing bonded labour.
• Prevention of tax evasion, economic crimes and smuggling.
• Regulation of prices of basic necessities, improvement in the public distribution system.
• Improvement in the textile industry by developing handloom sector, waiving loans for weaker sections, housing, communication facilities, making educational equipment available to schools.

3.A Give reasons.

Question 1.
Independent India opted for mixed economy.
Answer:
(i) Our Prime Minister Pandit Nehru adopted the middle path rather than taking recourse to any extremes. Some countries had adopted Capitalism, while some had adopted Socialism. Each type of economy had its own advantages.

(ii) In a capitalist system, the means of production are privately owned. In a socialist economy, the means of production are owned by the State in the name of the society.

(iii) A mixed economy works both in the private and the public sector. In order to achieve economic development of modem India, we gave preference to a model of ‘mixed economy’.

Question 2.
Banks were nationalised in 1969.
Answer:
(i) During the tenure of Prime Ministers Pandit Nehru and Lai Bahadur Shastri, banking was a monopoly of the private sector.

(ii) These banks represented different industrial groups. The Directors of these banks were working towards developing industrial sector and increasing its profit.

(iii) In order to stop this, the government nationalised the ‘Imperial Bank’ in 1955 and it got converted into State Bank of India.

(iv) This Bank opened several branches all over the country in a short while and played a major role in development.

(v) India had adopted a mixed economy after independence. Nationalisation of banks was essential to cover the deficits if they occurred while implementing different schemes.

(vi) Also the profit of these banks would come into the government treasury once they were nationalised. Prime Minister Indira Gandhi nationalised 14 banks on 19th July, 1969.

Question 3.
Mill workers went on strike.
Answer:
(i) During the Diwali of 1981, the workers expected to get a bonus of 20%.
(ii) The Rashtriya Mill Mazdoor Sangh, which was negotiating with the employers, agreed upon 8 to 17% bonus without taking the workers into confidence.
(iii) The cut in the bonus proved to be the cause of unrest. Some workers went to Dr. Datta Samant.
(iv) They asked him to accept their leadership. Workers of 65 mills came together and Dr. Datta Samant led the strike. On 18th January 1982, two and a half lakh workers went on strike.

B. Answer the following questions in 25 to 30 words.

Question 1.
Which programmes were started in the Eighth Five Year Plan?
Answer:
Following programmes were started in the Eighth Five Year Plan:

• Pradhanmantri Rozgar Yojana
• Mahila Samriddhi Yojana
• Rashtriya Samajik, Arthik Sahayya Yojana
• Midday Meal Scheme
• Indira Mahila Scheme
• Ganga Kalyan Scheme

Question 2.
Which heavy industries were set up under the Second Five Year Plan?
OR
Which projects were started in the Second Five Year Plan?
Answer:
(i) Iron and steel industries at Durgapur, Bhilai and Rourkela; Chemical fertilisers plant at Sindri; rail engine factory at Chittaranjan; factory of railway bogies at Perambur, Ship building factory at Vishakhapattanam and other heavy industries were set up in the Public Sector.

(ii) Huge dams like Bhakra-Nangal, Damodar, etc. were built to make water available for agriculture.

Class 9 History Chapter 4 Economic Development Additional Important Questions and Answers

Choose the correct option from the given options and and rewrite the statements:

Question 1.
India removed the import restriction on several commodities for _____ countries.
(a) BRICS
(b) SAARC
(c) Third – World
(d) Middle – East countries
Answer:
SAARC

Question 2.
The efforts of _____ resulted in the weekly Sunday holiday for mill workers from 1st January 1882.
(a) Mahatma Jyotirao Phule
(b) Sane Guruji
(c) Babu Jagjeevan Ram
(d) Narayan Meghaji Lokhande
Answer:
Narayan Meghaji Lokhande

Question 3.
During the tenure of Prime Minister Indira Gandhi ,________ a group in the Congress Party, made a demand for nationalisation of commercial banks.
(a) Congress Socialist Party
(b) Congress Forum for Socialist Action
(c) Congress wing of Socialist Propaganda
(d) Agency of Socialist Congress
Answer:
Congress Forum for Socialist Action

Question 4.
In 1995, India became a member of _______.
(a) World Trade Organisation
(b) International Monetary Fund
(c) GATT
(d) SAARC
Answer:
World Trade Organisation

Question 5.
In order to overcome drought and food shortages ______ undertook the experiment of Green Revolution.
(a) Chaudhary Charansingh
(b) Gulzarilal Nanda
(c) H D Deve Gowda
(d) Lal Bahadur Shastri
Answer:
Lal Bahadur Shastri

Question 6.
During the tenure of Prime Minister P.V. Narasimha Rao, _______ was our Finance Minister.
(a) John Mathai
(b) Yashwant Sinha
(c) P. Chidambaram
(d) Dr. Manmohan Singh
Answer:
Dr. Manmohan Singh

Question 7.
The first textile mill was started in Mumbai on 11th July, 1851 by _______.
(a) Pirojsha Burjorji Godrej
(b) Jamsedji Nusserwanji Tata
(c) Kawasjee Dawar
(d) Azim Hashim Premji
Answer:
Kawasjee Dawar

Question 8.
The new government of Janata Party ended the fifth Five Year plan by March 1978 and started the _______ from April 1978.
(a) Development Plan
(b) Enrolling Plan
(c) Rolling Plan
(d) Redemption Plan
Answer:
Rolling Plan

Question 9.
Manmohan Singh signed the agreement with the WTO and launched the policy of privatisation, ______ and globalisation.
(a) Liberalisation
(b) Industrialisation
(c) Maximisation
(d) Profitisation
Answer:
Liberalisation

Question 10.
On 18th January 1982, two and a half lakh workers went on a strike under the leadership of _________.
(a) Dhondo Keshav Karve
(b) Baba Amte
(c) Dr. Datta Samant
(d) Anna Hazare
Answer:
Dr. Datta Samant

Question 11.
The _______ plan is a reflection of the liberalisation and free market policy adopted in 1991.
(a) Seventh
(b) Eighth
(c) Fifth
(d) Sixth
Answer:
Eighth

Question 12.
The government nationalised the ‘Imperial Bank’ in 1955 and it got converted into ______
(a) Syndicate Bank
(b) Bank of India
(c) State Bank of India
(d) Reserve Bank of India
Answer:
State Bank of India

Question 13.
The term ‘Girangaon’ means ________.
(a) Town of hills
(b) Town of mills
(c) Group of industries
(d) Cottage industries
Answer:
Town of mills

Identify and write the wrong pair in the following sets:

Question 1.
(1) Public Sector – Controlled and managed by government
(2) Mixed Economy – Coordination in private and public sector
(3) 20 point programme – Nationalisation of 13 textile mills.
(4) Increased oil prices – Invasion of Kuwait by Iraq.
Answer:
Wrong Pair : 20 point programme Nationalisation of 13 textile mills.

Question 2.
(1) Congress Forum for Socialist Action – demanded nationalisation of banks.
(2) Rashtriya Mill Mazdoor Sangh – negotiations with the employer.
(3) Imperial Bank – converted in State Bank of India.
(4) National Stock Exchange – existed before WTO.
Answer:
Wrong Pair : National Stock Exchange – existed before WTO.

Question 3.
(1) SAPTA – Preferential trade
(2) SAARC – removal of import restrictions by India
(3) SEBI – established in 1998
(4) WTO – regulate global trade
Answer:
Wrong Pair : SEBI – established in 1998

Question 4.
(1) Barrister A.R.Antulay – leader of Rashtriya Mill Mazdoor Sangh
(2) Dr. Manmohan Singh – Finance Minister
(3) Indira Gandhi – nationalised 14 banks
(4) V.P. Singh – waived off loans of the farmers
Answer:
Wrong Pair : Barrister A.R.Antulay – leader of Rashtriya Mill Mazdoor Sangh

Question 5.
(1) Babasaheb Bhonsale – Chief Minster of Maharashtra
(2) Namdev Dhasal – Marathi Poet
(3) Shahir Sable – Programmes of public education
(4) Chandrashekhar – Associate of Mahatma Jyotirao Phule.
Answer:
Wrong Pair : Chandrashekhar – Associate of Mahatma Jyotirao Phule.

Complete the concept maps and flow charts of various programmes and schemes introduced:

Question 1.
Answer:

SECOND FIVE YEAR PLAN (1956-1961)
Iron and Steel industries	Durgapur, Bhilai, Rourkela
Chemical Fertilisers Plant	Sindri
Rail Engine Factory	Chittaranjan
Factory of railway bogies	Perambur
Ship building Factory	Vishakhapattanam

Question 2.
Answer:

Question 3.
Answer:

Question 4.
Answer:

Question 5.
Answer:

Question 6.
Answer:

Question 7.
Answer:

Give Reasons:

Question 1.
India established the Planning Commission to deal with economic repercussions of British colonialism,
Answer:
(i) The colonial power had exploited India economically. The country faced severe problems like poverty, unemployment, population growth, low standards of living, low productivity of agriculture and industries and backwardness in the fields of knowledge, science and technology. Planning was essential to solve these problems.

(ii) India established the Planning Commission in 1950 with Prime Minister Pandit Jawaharlal Nehru as its Chairman.

(iii) It formulated India’s five year plans that included rural and agricultural development, : balanced industrialisation, provision for a minimum standard of living and economic development consistent with democratic ideals.

(iv) It focused on people’s participation and individual development in the formulation and implementation of the five year plans.

Read the passage and answer the questions.

Passage I

Issues of workers: The first textile mill was started in Mumbai on 11th July, 1851 by Kawasjee Dawar. Eventually, mills started in Dadar, Parel, Bhaykhala, Shivdi, Prabhadevi and Worli. This part came to be i known as Girangaon or ‘town of mills’. In the 1980s, the increasing unrest among workers was due to the economic conditions in other sectors. In some industries the wages of the workers were increasing. They were also getting more amounts as bonus. They were getting more facilities than the textile mill workers.
In the Diwali of 1981, the workers expected to get a bonus of 20%. The Rashtriya Mill Mazdoor Sangh, which was negotiating with the employers, agreed upon 8 to 17% bonus without taking the workers into confidence. The cut in the bonus proved to be the cause of unrest. Some workers went to Dr. Datta Samant. They asked him to accept their leadership, Workers of 65 mills came together and Dr. Datta Samant led the strike. On 18th January 1982, two and a half lakh workers went on strike. Girangaon mills stopped running making it seem like Mumbai’s heart topped throbbing.
The Chief Minister of Maharashtra, Barrister A. R. , Antulay set up a committee to solve this issue. Later Babasaheb Bhosale became the Chief Minister of Maharashtra State. He insisted that as per law, he would talk only with the Rashtriya Mill Mazdoor Sangha. Dr. Datta Samant demanded that the law be revoked. In the beginning, the striking workers received help from their native villages. It was also , not very difficult for them to help each other. They set up departmental committees and distributed food grains, assistance in the form of funds, etc. The left parties had supported the strike. As the strike , dragged on, efforts were made to split the striking workers’ ranks. Even as the strike completed 6 months, the central government completely ignored it. The workers started a Jail Bharo Agitation’. In , September 1982, one and a half lakh workers took a march on the Legislative Assembly of Maharashtra State. It didn’t help at all. The strike completed a year. This was the first strike to have gone on for a year. In this period, about one and a half lakh workers became unemployed. As polyester had come into greater demand than cotton cloth, the sale of mill , cloth had already got affected. The mills moved from Mumbai to Surat in Gujarat. The Central government nationalised 13 textile mills. Appointment of i arbitrators did not help to resolve the issue.

Question 1.
Name the worker’s union mentioned in the passage. Why were the workers agitated with it?
Answer:
(i) The worker’s organisation mentioned in the passage is Rashtriya Mill Mazdoor Sangh.
(ii) The workers were agitated because they received less bonus and facilities in their textile mills, whereas economic conditions in the other sectors of the economy were far better.
(iii) The Rashtriya Mill Mazdoor Sangh that negotiated with the employers, settled at 8 to 17% of bonus as against the expectation of 20% by the workers.
(iv) The cut in the bonus led to the workers agitation.

Question 2.
State the contribution of Dr. Datta Samant in raising workers issues in Maharashtra?
Answer:
(i) Dr. Datta Samant was the leader of two and a half lakh workers who went on strike.
(ii) He demanded that the law be revoked which had empowered Rashtriya Mill Mazdoor Sangh alone to talk on behalf of the workers.

Question 3.
What is mixed economy?
Answer:
(i) In a capitalist system, the means of production are privately owned. In a socialist economy, the means of production are owned by the State in the name of the society.
(ii) A mixed economy works both in the private and the public sector.
(iii) In order to achieve economic development of modem India, we gave preference to a model of ‘mixed economy’.

Passage II

General Agreement on Tariffs and Trade (GATT) existed at the international level before the World Trade Organisation came into being. It regulated commerce. In India there were opposed, extreme views about the World Trade Organisation. Yet India decided to take its membership. The provisions of the World Trade Organisation are regarding grants, import-export, foreign investment, agriculture, technology and services. The sectors of electricity, water transportation, education and health rapidly commercialised since India became a member of the World Trade Organisation. As per the various reports of the World Trade Organisation, India has made a considerable improvement in different areas like reduction in the below poverty line (BPL) population, decline in infant mortality, availability of facilities regarding drinking water and waste water management. India signed the South Asian Preferential Trade Agreement (SAPTA) along the lines of the World Trade Organisation. India removed the import restrictions on several commodities for SAARC countries. India also gave discounts on import duties. India opened up the insurance sector to private and foreign investment.

Question 1.
Study the passage and give the full forms of GATT and SAPTA.
Answer:
GATT – General Agreement on Tariff and Trade.
SAPTA – South Asian Preferential Trade Agreement.

Question 2.
Explain, in your own words, the economic policy of “Make in India”.
Answer:
’Make in India’ is an economic policy as well as an organised progamme of the Government of India to encourage and promote various companies and enterprises to start manufacturing and producing goods in India. The aim of this initiative is to generate employment, enhance the skill of Indians and also to attract foreign investment.

Question 3.
What do the provisions of the WTO cater to?
Answer:
The provisions of the WTO cater to grants, import -export, foreign investment, agriculture, technology and services.

Answer the following questions in detail:

Question 1.
What is the fundamental principle of the Five Year Plans? Which economic goals are set forth by the Government?
Answer:
Fundamental principle of planning: A general principle of planning is the proportionate distribution of the resources of a country and the appropriate use of the human resources to fulfill the needs of the people.
Goals of Plans:
The general goals of the economic planning of India are as follows:

• Increase in the national income.
• Bringing about rapid industrialisation by focusing on the basic industries.
• Bringing about an increase in agricultural production so that the country becomes self-sufficient in foodgrain production.
• Use the human resources in the country optimally by availing increasing employment opportunities.
• Remove inequality in earnings and wealth.
• Maintain stable prices of commodities.
• Controlling the growth of population through family planning.
• Improve the standard of living by eradicating poverty.
• Develop social services.
• Make the economy self-sufficient.

Question 2.
Describe the prolonged agitation of the mill workers under Dr. Datta Samant.
Answer:
(i) In the beginning, the striking workers received help from their native villages. It was also not very difficult for them to help each other.

(ii) They set up departmental committees and distributed food grains, assistance in the form of funds, etc

(iii) The left parties had supported the strike. As the strike dragged on, efforts were made to split the striking workers’ ranks.

(iv) Even as the strike completed 6 months, the central government completely ignored it. The workers started a ‘Jail Bharo Agitation’.

(v) In September 1982, one and a half lakh workers took a march on the Legislative Assembly of Maharashtra State.

(vi) It didn’t help at all. The strike completed a year. This was the first strike to have gone on for a year.

(vii) In this period, about one and a half lakh workers became unemployed.

(viii) As polyester had come into greater demand than cotton cloth, the sale of mill cloth got affected. The mills moved from Mumbai to Surat in Gujarat.

(ix) The Central government nationalised 13 textile mills. Appointment of arbitrators did not help to resolve the issue.

Question 3.
Which enterprises came under government due to the lack of capital investment?
Answer:
(i) The industries like defence, scientific research, education, roads, railways, waterways, sea port and airport development require huge capital investment but the returns in these areas are delayed.
(ii) Not many private industrialists are keen to invest in these areas. In such a situation, the government has to take the initiative.

Question 4.
State the Industrial policy of 1973.
Answer:
(i) The industrial policy of 1973 increased the speed of development.
(ii) Priority was given in this policy to control the influence of heavy industries, industrial families and foreign industries and remove the imbalance in regional development.
(iii) The government focused on the development of small scale industries and cottage industries.

Question 5.
What were the aims of the ‘Third Five Year Plan’?
Answer:
(i) This plan was aimed at bringing about a balance in industries and agriculture.
(ii) The other goals of the plan included increase in national income, heavy industries, development in transport and mineral industry, alleviation of poverty and to expand the opportunities for employment.

Question 6.
What was the background for . the nationalisation of banks?
Answer:
(i) India had adopted a mixed economy after independence.
(ii) Nationalisation of banks was essential to cover the deficits if they occurred while implementing different schemes.
(iii) Also the profits of these banks would come into the government treasury once they are nationalised.

Question 7.
State the cultural contributions of the working class.
Answer:
(i) The working class has contributed culturally as well through folk theatre, folk art and literature. Anna Bhau Sathe, Shahir Amar Sheikh, Shahir Sable were popular for their programmes aimed at public education.
(ii) Poets like Narayan Surve, Namdev Dhasal, etc., portrayed the real life of the workers through their poems.

Question 8.
Who took responsibility to bring the Indian economy in sync with the global mainstream?
Answer:
(i) The year 1991 is very important in the history of modem India. After the 10th General elections, P. V. Narasimha Rao became the Prime Minister of India.

(ii) With Dr. Manmohan Singh as Finance Minister, he adopted the new economic policy of linking India’s economy with the global economy.

(iii) For this, fundamental changes were brought about in the Indian economy. Indian economy was brought in tune with the global mainstream.

Question 9.
Which corrective measures were taken by Manmohan Singh to relieve the crisis of the Indian economy?
Answer:
(i) Dr. Singh undertook many corrective measures. The situation began to change.
(ii) He removed the restrictions on foreign investments.
(iii) He restricted the licence system to 18 industries. In view of the increasing losses in the public sector industries, he opened up the public sector for investment by private industries.
(iv) In order to bring the share market under control, he established the Securities and Exchange Board of India (SEBI) in 1992.
(v) National Stock Exchange was computerised. He gave priority to remove the spectre of recession.

Question 10.
State the impact of corrective measures taken by Dr. Manmohan Singh on the economy of our country.
Answer:
(i) Foreign Investment in India grew during the first tenure of Dr. Manmohan Singh as Finance Minister.
(ii) India could recover the gold mortgaged with the Bank of England.
(iii) The government got the support of the capitalist class as well as the middle class.
(iv) As the government opened up the telecom sector, mobile phone services started all over the country.
(v) Dr. Manmohan Singh signed the agreement with the World Trade Organisation and launched the policy of “privatisation, liberalisation and globalisation.”

Question 11.
What were the objectives of the WTO?
Answer:
(i) In 1995, India became a member of the World Trade Organisation (WTO).
(ii) The organisation had the following objectives: to free trade between countries, to put an end to all those discriminatory laws, restrictions, rules and policies that are hurdles in the way of international free trade and to regulate global trade with the help of a formal multi – party mechanism.

Question 12.
Do you agree that membership with the WTO has ushered in changes in the economic sector of our country? State the reason for your answer.
Answer:
(i) Yes, of course. The provisions of the World Trade Organisation have included grants, import-export, foreign investment, agriculture, technology and services.

(ii) The sectors of electricity, water transportation, education and health have been rapidly commercialised since India became a member of the World Trade Organisation.

Question 13.
State the improvements which have occurred in our economy as per the reports of WTO.
Answer:
As per the various reports of the World Trade Organisation, India has made considerable improvement in different areas like reduction in the below poverty line (BPL) population, decline in infant mortality, availability of facilities regarding drinking water and waste water management.

Question 14.
Which economic challenges were faced by the Government of Prime Minister Chandra Shekhar?
Answer:
(i) During the tenure of Chandra Shekhar the rate of inflation was 17%.
(ii) Economic growth rate had decreased by 1.1%. India had foreign exchange reserves only enough to last for imports for a week.
(iii) It had become difficult to pay back its loan and the interest on it.
(iv) In May 1991, the government had tried to control the situation by selling some of its gold reserves and by mortgaging some.

Question 15.
Which economic liabilities were incurred by V. P. Singh government?
Answer:
(i) The V. P. Singh government had incurred a liability of over 10 thousand crore rupees on the economy by waiving off the loans of all the farmers.
(ii) The proportion of internal loans of central and state government together to the Gross Domestic Product was 55%.
(iii) In 1980-81 foreign loan was 2350 crore dollars. It increased to 8380 crore dollars in 1990-91.
(iv) At this time, India had foreign exchange reserves of only 100 crore dollars.
(v) This also had the background of the increased oil prices due to the invasion of Kuwait by Iraq.
(vi) It became difficult for India to raise a loan. Even the non-resident Indians started withdrawing their deposits in foreign currency from India.

Identify the picture and give relevant information.

Question 1.

Answer:
(i) Nationalisation of banks was essential to cover the deficits if they occurred while implementing different schemes and profit of these banks came under the government treasury.

(ii) Also the profit of these banks would come into the government treasury once they were nationalised. Prime Minister Indira Gandhi nationalised 14 banks on 19th July, 1969.

Question 2.

Answer:
(i) P. V. Narasimha Rao and Manmohan Singh.
(ii) They removed the restrictions on foreign investments.
(iii) Restricted the license system to 18 industries.
(iv) Opened up the public sector for investment by private industries.
(v) Established the SEBI (Securities and Exchange Board of India) in 1992 to regulate and bring share market under control.
(vi) Foreign investment in India grew.
(vii) India could recover the gold mortgaged with the Bank of England.

Balbharti Maharashtra State Board Class 9 Geography Solutions Chapter 10 Urbanisation Human Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Geography Solutions Chapter 10 Urbanisation Human

Class 9 Geography Chapter 10 Urbanisation Human Textbook Questions and Answers

1. Suggest measures for the following problems:

(A) The slums in the cities are increasing.
Answer:

• Creating more job opportunities in the rural areas so that migration is minimised.
• Poverty alleviation schemes need to be implemented to improve the standard of living of the poor.
• Initiative for improvement of sanitation, housing and other facilities must be facilitated.

(B) Because of the increasing traffic jams within the city, lot of time is consumed in commuting.
Answer:

• To reduce traffic jams, carpooling is a great way to get to and fro work.
• Planning the route in advance will help to avoid any road construction or other traffic jams.
• Making use of public transportation like Railways, BEST, etc. will also help in reducing traffic congestion and precious fuel.

(C) The question of law and order in the urban areas is serious.
Answer:

• Many crimes are due to poverty and unemployment. Poverty alleviation and employment generation programmes should be given priority.
• The semi-literate / educated unemployed persons should be given skill-training and be prepared for self-employment.
• The police and the judicial system “should be strengthened to wipe out criminals.

(D) The problem of pollution is grave because of urbanisation.
Answer:

• Walking or cycling to the work place will not only help in improving the health conditions of individuals but will also help in reducing pollution.
• Cities need to green up (plant more trees) as trees are considered to be the natural purifiers.
• Strict action should be taken against polluting industrial units.

(E) Migration has created questions of health and education in urban areas.
Answer:

• Migration from rural to urban areas can be reduced if employment opportunities are provided in the rural areas.
• Infrastructure like transport, electricity, public distribution system, etc. need to be provided in the rural areas.
• Educational institutes and health centres need to be upgraded in the rural areas.

2. Match the correct pairs :

Group A – Group B
(1) Technological development and mechanization – (A) Urban areas
(2) Permanently staying away from your original place – (B) Lack of planning
(3) 75% males are engaged in non-agricultural occupation – (C) Migration
(4) The problems of solid waste – (D) Urbanisation
Answer:
(1-d),
(2- c),
(3 – a),
(4 – b)

3. Outline the importance/ advantages of the following:

(A) Technology and mechanisation
Answer:

• Technology and mechanisation increase industrial production, creates employment and is useful for urbanisation.
• In recent decades, the use of technology and mechanisation has increased in agriculture.
• Due to the mechanisation of agriculture, the surplus manpower employed in agriculture have become devoid of agricultural work.
• This working class started coming to cities to look for work and as a result urban population started increasing.

(B) Trade
Answer:

• When a place in a region is favourable in terms of transport, loading-unloading and storage of goods, it developes into a trade centre.
• This leads to the growth of business complexes, banks, credit societies, godowns, cold storage, houses, etc.
• For example, Nagpur’s central location has facilitated trade and hence urbanisation has also taken place here.

(C) Industrialisation
Answer:

• Industrialisation leads to increase in the hopes of people who are attracted towards the industries from surrounding areas for employment.
• Rapid growth of Mumbai in the 19th century was due to the textile mills which were started here.
• Many fishing villages (Koliwadas) became part of Mumbai metropolitan2 area due to industrialisation and urbanisation.

(D) Amenities in urban areas
Answer:

• Urbanisation leads to development of a number of amenities and facilities in urban areas.
• Transportation, communication, educational facilities, medical facilities, fire brigade, various sources of entertainment, etc. are examples of amenities in urban areas.
• A good transportation not only makes a journey easier but also has a positive effect on freight transport, development of markets, trade, etc.
• Development of higher educational facilities in urban areas attract students from rural areas to urban areas. E.g. Pune.
• Development of high quality medical facilities in urban areas bring many patients and their family members from different parts of India to these areas.

(E) Social harmony in the cities
Answer:

• Social harmony refers to the exchange of cultural and social customs and traditions as people from different parts live together in the cities.
• An increase in urbanisation leads to an increase in secondary, tertiary and quaternary occupation.
• This results in an increase in employment opportunities due to which people from different parts of the country come to cities and there is an exchange of customs and traditions.

4. Compare the following and give examples:

(A) Transportation system and traffic jams
Answer:

• As cities grow, people start living on the outskirts and in the suburbs of the city.
• People commute to the centre of the city for businesses and industries, trade, jobs, education, etc.
• Public transportation system is insufficient and hence the number of private vehicles increase.
• This results in an increase in traffic jams and a lot of time is consumed in travelling from one place to another.
  e.g. Although Mumbai has a well developed transportation system it is insufficient to fulfil the growing needs of people.

Hence, traffic jams are a frequent site in different pockets of Mumbai.

(B) Industrialisation and air pollution
Answer:

• Industrialisation refers to the growth in number of industries in a particular region.
• As more and more industries crop up, it becomes convenient for the industries to violate the environmental laws.
• Paucity of facilities, insensitivity towards environment are the other factors which leads to an increase in the pollution level.
• Hence, Industrialisation and Air pollution are the two aspects of the same coin.
  e.g. Delhi, Faridabad and Varanasi are the ! victims of rapid industrialisation leading to j severe air pollution.

(C) Migration and slums
Answer:

• The increase in the number of migratory people causes an increase in the slums.
• Generally migration from rural to urban areas takes place in search of job opportunities, which are hard to find.
• The housing facilities do not increase in the same proportion as the population, so the poor migrants can not afford the housing in the cities.
• This encourages the migrants to build illegal temporary and semi-structured houses known as slums, in open spaces. e.g. Slums in Dharavi (Mumbai city)

(D) Amenities and increasing crime
Answer:

• Amenities refers to facilities that provide comfort, convenience or pleasure to people.
• Transportation, communication, educational and medical facilities, fire brigade, etc. are the examples of amenities available in urban areas.
• Unemployed people who have migrated to the cities are unable to avail these amenities.
• This leads to an increase in thefts, burglaries, scuffles5, murders, etc. which disturb the social harmony of the cities.
  e.g. Pick pocketing in the local trains.

5. Complete the table :

Process of urbanisation	Effects
Emergence of slums	Illegal settlements Insufficient facilities
	Increase in population because of attraction of good lifestyle Can be short-term or long-term
Pollution
	Employment opportunities were generated Increase in amenities and facilities
Change from rural to urban

Answer:

Process of urbanisation	Effects
Emergence of Slums	Illegal settlements Insufficient facilities
Migration	Increase in population because of the attraction of good lifestyle. Can be short-term or long term.
Pollution	Adverse effects on urban life.
Industrialisation	Employment opportunities have generated, increase in amenities and facilities.
Change from rural to urban	Formation of Municipal Corporation. better civic amenities, development of occupations.

6. Explain:

(A) The growth of cities takes place in a specific method.
Answer:
Villages are transforming into cities. The growth of cities take place in a particular pattern.

• At first various industries like factories, mills, energy plants, multi-purpose projects3 etc., come up in rural areas.
• People from surrounding areas come to work here and the population of the village increases.
• To fulfill their needs other services develop like medical facilities, food, hospitals, recreation, etc.
• The Gram Panchayat gives way to a Municipal Corporation.
• These bodies provide basic services to citizens like drinking water, roads, transportation, sewerage network, street lighting etc.
• Other facilities develop like town planning recreation facilities, tourist places, parks etc.

(B) A planned city of your imagination
Answer:

• A city which is carefully planned from its inception and is constructed in a previously undeveloped area is a planned city.
• A planned city is one in which there is adequate infrastructural facilities like roads, railways, water supply, power supply, etc.
• Also, there should be open spaces available for recreation facilities.

(C) Industrialisation causes cities to develop.
Answer:

• The development and concentration of industries in a region is a factor contributing towards urbanisation.
• Increase in industries leads to increase in the hopes of people who are attracted towards these industries from surrounding areas.
• An increase in population leads to the development of infrastructural facilities like roadways, railways, power supply, water supply etc. which are the characteristics of a planned city.
• In the 19th century, Mumbai grew rapidly because textile mills started on a large scale.

(D) Pollution- A problem
Answer:

• Pollution is the introduction of contaminants into natural environment that causes adverse changes.
• Pollution can be that of air, water, noise, solid waste, etc.
• Pollution can adversely affect the human health.
• Water pollution can lead to several water borne diseases like typhoid, cholera etc. Air pollution can lead to asthma and other respiratory diseases. Noise pollution can lead to sleep disturbance, hearing impairment etc.

(E) Swachchh Bharat Abhiyan
Answer:

• Swatch Bharat Abhiyan is a cleanliness campaign run by the Government of India.
• ‘One step towards cleanliness’ is the objective of this campaign.
• This campaign aims to keep the streets and infrastructure of the country’s cities, towns and its rural areas clean.
• The funds for this programs are raised by ‘Swachchh Bharat Cess’.

7. Suggest measures for the following problems of urbanisation shown in the following pictures.

(1) Air Pollution:

Answer:

• Switching from coal, oil to natural gas as fuel in the industries.
• Industrial areas should be located at a safe distance from residential areas.

(2) Noise Pollution:

Answer:

• Follow the limits of noise level.
• Shut the door when using noisy machines.
• To restrict noise pollution lower the volume of horns, loudspeakers, etc.

(3) Solid Waste Pollution:

Answer:

• Avoid disposing and littering of solid waste in the open.
• Follow the principle of 4 R’s (Reduce, Recycle, Repair and Reuse) for non-biodegradable things.
• Segregation of dry waste and wet waste for proper disposal.

(4) Water Pollution:

Answer:

• Sewage should not be allowed to mix with water sources without getting treated.
• Avoid mixing industrial wastes and effluents directly into water sources.
• Daily household chores should be avoided at water sources.

Class 9 Geography Chapter 10 Urbanisation Human Intext Questions and Answers

Can you tell?

Question 1.
Answer the following questions.

(i) Why is Suresh thinking of going to the factory for work?
Answer:

• Suresh is thinking of going to the factory as it will get him a monthly salary.
• Also, if he works overtime, he will get additional money and a bonus during Diwali.

Question 2.
What is Tatya worried about?
Answer:

• Tatya is worried about the availability of labour in the agricultural field, since his son (Suresh) has decided to work in the factory.
• Also, he is worried whether his son can manage working in the field and the factory simultaneously.

Question 3.
What changes does Suresh think will occur in the village?
Answer:

• Development of goods and facilities like hospitals, schools and colleges, administrative offices, huge buildings are expected in the village.
• The above factors will lead to migration of people from different villages which will bring about rural development.

Question 4.
What other changes do you think will occur in the village?
Answer:
There “will be well planned drainage systems, pure drinking water supply, street lightning, concrete roads, public library, etc. amenities will be provided. There will be fire station to control fires, police stations to control crimes. These changes are likely to occur in the village.

Give it a try.

Question 1.
Give example of villages in your area turning into urban settlement.
Answer:

• Airoli, Nerul, Kopar Khairane, Vashi, Panvel, Taloja, Kamothe etc which comprises of Navi Mumbai (New Bombay) are the examples of villages turning into urban settlement.

Question 2.
Find out the main reason of that rural area turning into urban settlement.
Answer:
City and Industrial Development Corporation (CIDCO) planned and constructed all the railway stations, roads and public spaces in Navi Mumbai. APMC (Agricultural Produce Market Committee) which is a wholesale agricultural produce market at Vashi and Construction of Commuter railway line from Mankhurd to Vashi led to growth in economic activities and population in Navi Mumbai.

Question 3.
Obtain information regarding development of settlements, villages, towns, etc. located on the main transport routes in your surroundings in the last five years.
Answer:
In Mumbai along the Metro station route there are 2 settlements which have developed. They are Asalpha and Jagruti Nagar. Neither were very well-known places five years ago. But today they are important metro stations.

Question 4.
Make a list of cities in your district.
Answer:
I live in Thane District – Two of the cities are:

• Bhiwandi
• Badlapur.

Question 5.
Discuss which factors from above are responsible for their development.
Answer:
Factors responsible for development are:-

• Bhiwandi – Industrialisation (Textile industry)
• Badlapur – Transport (Connected to Mumbai – Pune expressway, has railway station on Mumbai – Pune route)

Question 6.
If possible, talk to people who have migrated in your surroundings or the nearest town and find out reasons of migration.
Answer:
People have migrated from Mumbai to Navi Mumbai.

The reasons are:

• Better town planning
• Better standard of living

Write five sentences on each picture after observing them.

Answer:

• In this picture the harmful gases, smoke released by the factory is causing air pollution.
• Any substance that is introduced into the atmosphere and has damaging effects on living things and the environment is called Air Pollutant.
• Air Pollution occurs when any harmful gases, dust, smoke enters into the atmosphere.
• Air Pollution can lead to asthma, respiratory inflammation, decrease in living functioning and other respiratory diseases in humans.
• The Ozone layer on the planet is depleting due to increased Air Pollution.

Answer:

• The picture shows heavy smog in a city causing air pollution.
• Smog is a combination of smoke and fog.
• Usually smog results from large amounts of coal burning in an area and is caused by a mixture of smoke and Sulphur dioxide.
• It is a big problem in Beijing and New Delhi.
• Smogs cause lung diseases.

Answer:

• In this picture we can see untreated polluted water being released into a river causing water pollution.
• Water pollution is the contamination of water . bodies like lakes, rivers, oceans, etc.
• Almost 80% of water pollution is caused by domestic sewage.
• Water pollution can lead to several waterborne diseases like typhoid, cholera, dysentery, jaundice and malaria.
• Water pollution affects marine life and the environment.

Answer:

• The picture shows a washerman washing clothes in a pond, thus polluting the water.
• The soap and detergent used in bathing or washing contains certain chemicals which can pollute the water.
• Water pollution affects the aquatic life.
• Water pollution is a big menace to the economy, the environment and human health.
• We should raise the awareness among the people about the causes and effects of water pollution.

Answer:

• In this picture we can see people are affected due to noise pollution caused by the loudspeakers.
• Noise pollution is excessive noise that harms the balance of human or animal life.
• Outdoor noise can be caused by machines, construction activities, vehicular traffic, sound of train or aircrafts, loudspeakers, etc.
• Noise pollution can cause hypertension, high stress levels, hearing loss, sleep disturbances, etc.
• Thus noise pollution affects both health and behaviour.

Observe the image and answer the following questions?

(i) What does the symbol signify?
Answer:
The symbol signifies an Indian Government campaign called ‘Swachh Bharat Abhiyan’, or ‘Clean India Movement’.

(ii) Obtain information regarding it through internet.
Answer:

• Swachchh Bharat Abhiyan is a cleanliness campaign run by the Government of India.
• The campaign involves the construction of latrines, promoting sanitation programmes in the rural areas, cleaning streets, roads and changing the infrastructure of the country to lead the country ahead.
• It is launched as a responsibility of each and every citizen to make this country a Swachh country.
• It was launched by Prime Minister Narendra Modi on the 145th birth anniversary of Mahatma Gandhi on 2nd October, 2014 at Rajghat, New Delhi.

(iii) Write how this programme is related to your daily life.
Answer:
In our daily life we see that in the rural and urban areas people are openly defecating, due to lack of latrines. This is not only an ugly sight, but also there are many adverse effects to it. There is a risk of contracting many diseases. Also it is unsafe for women and young girls.

Think about it.

Question 1.
Which facilities are necessary to be developed in urban areas for fulfilling the needs of the population?
Answer:
Facilities necessary to be developed in urban areas for fulfilling the needs of the population are:

• Adequate water supply
• Proper sewage system
• Better means of transportation
• Regular power supply
• Sanitation
• Health care centres
• Schools and colleges.

Question 2.
Why do the sources of water near the city get polluted?
Answer:
The sources of water near the city gets polluted due to garbage from construction sites, and industrial areas, improper disposal of hazardous materials from garbage disposal companies, chemical spills and improper chemical disposal, sewage leaks, etc.

Question 3.
How is the polluted water disposed off in the cities?
Answer:
Almost 80% of the water pollution is caused by domestic sewage. This untreated sewage mixes with the various water bodies and causes water pollution.

Question 4.
Is the water supplied to the cities good for health?
Answer:

• The cities have a chlorinated central water supply, managed by the government. But people living in illegal slums have been unable to legally connect to this system.
• This forces many of them to illegally tap into city water pipes.
• This has compromised the safety of the water supply through cross-contamination in many places.

Question 5.
What are the adverse effects of water, air and noise pollution on health?
Answer:
Pollution affects the health adversely. The effects are:

• Water pollution can lead to several water borne diseases like typhoid, cholera, dysentery, jaundice and malaria.
• Air pollution can lead to asthma, respiratory inflammation, lung functioning diseases and other respiratory diseases.
• Noise pollution can lead to hearing impairment, hypertension, sleep disturbance and so on.

Use your brain power!

Write a paragraph suggesting measures of these problem of urbanisation.

Question 1.
When heaps of wastes accumulate bad odour and diseases are spread.
Answer:

• To reduce the heaps of wastes reusable bags and containers must be used for shopping, travelling or packing lunches or leftovers.
• Food scraps and garden waste can be combined to form compost.
• Buy items made of recycled content and use and reuse them as much as you can.

Question 2.
Traffic jams are a regular routine.
Answer:

• To reduce traffic jams, carpooling is a great way to get to and from work.
• Planning the route in advance will help to avoid any traffic jams.
• Making use of public transportation like railway, BEST etc will also help in reducing traffic congestion and precious fuel.

Find out.

Question 1.
Look for the changes that have occurred in the technology and mechanisation of agriculture with the help of internet. Write a short paragraph about the information you obtain.
Answer:
Mechanisation was one of the main factors responsible for urbanisation and industrialisation. Besides improving the production efficiency, mechanisation encourages large scale production and also improves the quality of production. On the other hand, mechanisation also displaces unskilled farm labour and causes environmental degradation (such as pollution, deforestation and soil erosion).

Try this.

Question 1.
Using the industrial information given in the table below, draw a line graph of the percentage of urban population. Discuss in terms of urbanisation. After studying this graph write the conclusion about urbanisation in our country from 1961-2011 in your own words.
Answer:
Observations:

• The urban population has been increasing consistently from 1961 to 2011.
• The growth of urban population was about 5.5 % from 1961 to 1981.
• However, the growth of urban population was to 13.7% from 1981 to 2011.
• Industrialisation, trade, mechanisation and technology, transport and communication and migration are factors responsible for increase in urban population.

Class 9 Geography Chapter 10 Urbanisation Human Additional Important Questions and Answers

Complete the statements choosing a colored option from the bracket:

Question 1.
In India is the main occupation.
(a) Industries
(b) Agriculture
(c) Banking
(d) Fishing
Answer:
(b) Agriculture

Question 2.
provides public service to the village.
(a) Gram Panchayat
(b) Municipal Council
(c) Government of India
(d) Army
Answer:
(a) Gram Panchayat

Question 3.
or provides public service to the urban areas.
(a) Municipal Council / Municipal Corporation
(b) Gram Panchayat / Gram sabha
(c) High Court / Supreme Court
(d) Government of India
Answer:
(a) Municipal Council or Municipal Corporation

Question 4.
Census of India decided to define ‘Urban’ in the year
(a) 1951
(b) 1961
(c) 1971
(d) 1981
Answer:
(b) 1961

Question 5.
For an urban area more than of the male working population must be engaged in non-agricultural occupation.
(a) 70%
(b) 75%
(c) 80%
(d) 85%
Answer:
(b) 75%

Question 6.
For an urban area, the population of the settlement should be more than
(a) 3000
(b) 4000
(c) 5000
(d) 6000
Answer:
(c) 5000

Question 7.
For an urban area, the density of population should be more than persons per sq.km.
(a) 400
(b) 300
(c) 500
(d) 700
Answer:
(a) 400

Question 8.
The growth of population from 1961 to 1981 was around
(a) 3.2%
(b) 4.3%
(c) 5.5%
(d) 6.5%
Answer:
(c) 5.5%

Question 9.
The growth of population from 1981 to 2011 was around
(a) 12.73%
(b) 14.73%
(c) 13.73%
(d) 12.83
Answer:
(c) 13.73%

Question 10.
The development and concentration of industries in a region is a factor contributing towards
(a) industrialisation
(b) mechanisation
(c) urbanisation
(d) agriculture
Answer:
(c) Urbanisation

Question 11.
In 19th century Mumbai grew rapidly because of
(a) shopping malls
(b) textile mills
(c) service industries
(d) agriculture
Answer:
(b) Textile mills

Question 12.
is a centrally located part of India.
(a) Nagpur
(b) Bhopal
(c) Bilaspur
(d) Pune
Answer:
(a) Nagpur

Question 13.
In the recent decades, the use of technology has increased in
(a) industries
(b) service
(c) agriculture
(d) engineering
Answer:
(c) agriculture

Question 14.
Manpower employed in agriculture become devoid of agriculture work due to
(a) industrialisation
(b) urbanisation
(c) mechanisation
(d) rains
Answer:
(c) Mechanisation

Question 15.
Convergence of important rail routes through led to its growth.
(a) Shirdi
(b) Pune
(c) Bhusaval
(d) Nagpur
Answer:
(c) Bhusaval

Question 16.
can be short-term, long term or permanent.
(a) Population growth
(b) Migration
(c) Trade
(d) Mechanisation
Answer:
(b) Migration

Question 17.
of a region changes largely due to urbanisation.
(a) Persona
(b) Geographical boundary
(c) Characteristics
(d) Trade
Answer:
(c) Characteristics

Question 18.
An increase in occupations leads to an increase in activities.
(a) non-economic
(b) agricultural
(c) economic
(d) social
Answer:
(c) economic

Question 19.
and social customs and traditions are exchanged as people from different parts live together in the cities.
(a) Political
(b) Economic
(c) Cultural
(d) Technological
Answer:
(c) Cultural

Question 20.
Exchange of culture, customs and traditions among people in the region creates
(a) oneness
(b) brotherhood
(c) social harmony’
(d) conflicts
Answer:
(c) social harmony

Question 21.
Due to, urban settlements get an advantage of new ideas, updated technologies and technological facilities.
(a) Jobs
(b) Modernisation
(c) Crime
(d) Migration
Answer:
(b) Modernisation

Question 22
Due to urbanisation, population iii the city increases rapidly but the do not increase in the same proportion.
(a) Entertainment facilities
(b) Sanitation facilities
(c) Housing facilities
(d) Irrigation facilities
Answer:
(c) housing facilities

Question 23.
give rise to social and health related issues.
(a) Scuffles2
(b) Thetis
(c) Slums
(d) Schools
Answer:
(c) Slums

Question 24.
is a major problem in the cities.
(a) Pollution
(b) Thetis
(c) Education
(d) Entertainment
Answer:
(a) Pollution

Question 25.
is a means to earn money through illegal ways.
(a) Harmony
(b) Crime
(c) Slum
(d) Industries
Answer:
(b) Crime

Match the following:

Column ‘A’	Column ‘B’
(1) Private vehicles due to insufficient public transportation.	(a) Crime
(2) Means to earn money through illegal ways.	(b) Pollution
(3) A major problem in the urban area that affects urban life.	(c) Slums
(4) Lack of basic facilities and narrow roads.	(d) Traffic jams

Answer:
(1 – d),
(2 – a),
(3 – b),
(4 – c)

Answer in one sentences:

Question 1.
What is urbanisation?
Answer:
Urbanisation is a process whereby population move from rural to urban area, enabling cities and towns to grow.

Question 2.
What should be the population density of a settlement, to be defined as an urban area?
Answer:
As per the Census of India (1961), the population density of the settlement should be more than 400 persons per sq.km.

Question 3.
Why did urbanisation start increasing in Nagpur?
Answer:
As Nagpur is centrally located in India, it faciliated trade and hence, urbanisation started increasing here.

Question 4.
What led to the rapid growth of village Savarde (District Ratnagiri)?
Answer:
Savarde’s proximity to the Konkan railway and conversion of important rail routes through Bhusawal (Dist. Jalgaon), led to the rapid growth of the village Savarde.

Question 5.
Which maj or factor has affected urbanisation?
Answer:
Migration is a major factor affecting urbanisation.

Question 6.
Name the types of migration based on time?
Answer:
The types of migration based on time are:

• short-term migration
• long-term migration and
• permanent migration

Question 7.
Name the types of migration based on place?
Answer:
The types of migration based on place are:

• rural to urban
• urban to urban and
• rural to rural

Question 8.
Which kind of occupations increase with urbanisation?
Answer:
There is an increase in secondary, tertiary and quaternary occupations with urbanisation.

Question 9.
How does urbanisation lead to social harmony?
Answer:
As people from different parts start living together in the cities, cultural and social customs as well as traditions are exchanged leading to social harmony.

Question 10.
Give any one reason why modernisation and urbanisation go together.
Answer:
In urban areas, people from different regions of the country migrate and exchange their wisdom, skills and knowledge resulting in modernisation.

Question 11.
Name some amenities and facilities that develop due to urbanisation.
Answer:
Transportation, communication, educational and medical facilities, fire brigade, etc. are some amenities and facilities that develop due to urbanisation.

Question 12.
Why do many students come to Pune city?
Answer:
Many students pursuing higher education come to Pune city, as it is well-known for these facilities.

Question 13.
Why do slums lack basic facilities?
Answer:
Most of the slums are illegal, so they do not get basic facilities from the local self governments.

Question 14.
What is the main reason for increase in the crime rate in the cities?
Answer:
The people who have migrated do not always find employment in the cities and hence crime rate has increased.

Question 15.
Which factors create tension in the cities?
Answer:
Increase in crime rates, enormous increase in land prices, struggle between various groups, etc. create tension in the cities.

Question 16.
Why do the sources of water near the city get polluted?
Answer:
Almost 80% of the water pollution is caused by domestic sewage. This untreated sewage mixes with the various water bodies and causes water pollution. Thus the sources of water near the city get polluted.

Question 17.
How is the polluted water disposed off in the cities?
Answer:
In the cities polluted water is treated in the waste water treatment plants before its disposal.

Balbharti Maharashtra State Board Class 9 History Solutions Chapter 8 Industry and Trade Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 History Solutions Chapter 8 Industry and Trade

Class 9 History Chapter 8 Industry and Trade Textbook Questions and Answers

1A. Choose the right option and rewrite the sentence:

Question 1.
In 1948, Industrial Finance Corporation of India was formed for ________.
(a) better development of the industrial sector
(b) making available long term loans to industrial projects
(c) generating employment
(d) determining the quality of finished goods
Answer:
(b) making available long term loans to industrial projects

Question 2.
industry in India is called the _____.
‘Sunrise Sector’.
(a) Jute
(b) Automobile
(c) Cement
(d) Khadi and village industries
Answer:
(b) Automobile

Question 3.
The major responsibility of the textiles committee is ________.
(a) Production of cloth
(b) Determining the quality standards of cloth
(c) Export of cloth
(d) Generate employment for people
Answer:
(b) Determining the quality standards of cloth

Question 4.
__________ is the major Indian city in the production of bicycles.
(a) Mumbai
(b) Ludhiana
(c) Cochin
(d) Calcutta
Answer:
(b) Ludhiana

B. Identify the wrong pair and rewrite the corrected one:

Question 1.
(1) Industrial Finance Corporation of India – makes long term loans available for industrial projects.
(2) Industrial Development Corporation – development of the industrial sector.
(3) Textiles Committee – the welfare of weavers.
(4) Khadi and Village Industries Commission – promotion of industrialization in rural areas
Answer:
Wrong Pair: Textiles Committee – the welfare of weavers.

Question 2.
(1) Bicycle – Ludhiana
(2) Seribiotic Research Laboratory – Nagpur
(3) Tractor Export – Africa
(4) Port for Trade – Mumbai.
Answer:
Wrong Pair: Seribiotic Research Laboratory -Nagpur.

2A. Create a concept picture based on the chapter:

Question 1.
Industries in India.
Answer:

Question 2.
India’s imports and exports or foreign trade.
Answer:

B. Explain the following concept:

Question 1.
Internal trade of India.
Answer:
(i) India’s internal trade takes place through railways, waterways, roads, airways, etc. Ports like Mumbai, Kolkata, Cochin and Chennai are important.
(ii) Commodities like coal, cotton, cotton textiles, rice, wheat, raw jute, iron, steel, oilseeds, salt, sugar, etc. are included in internal trade.
(iii) Due to the development of industries, the standard of life in the country improves.
(iv) Many opportunities for employment become available. On the whole, it helps in the progress of the country.

3A. Explain with reasons:

Question 1.
The tourism industry has developed to a great extent in India.
Answer:
(i) India has a rich cultural heritage. There are places of worship of different religions, pilgrimage centers, confluences of rivers, forts, caves, etc. all over our country.

(ii) Tourists from our country as well as from abroad travel in India throughout the year.

(iii) The facilities for tourists to stay, travel, etc. are provided through the Tourism Development Corporation. Sale of curios and the hotel industry thrives in tourist places. In some places, there are guides who give information to tourists about that area.

(iv) Sometimes when vehicles don’t reach the destination in some remote areas and difficult to reach tourist places, the local people help the tourists in return for a fee.

(v) Employment opportunities are generated out of these needs. Thus, the tourism industry has developed a lot in India.

Question 2.
The quality of life and standard of living of Indian citizens is increasing.
Answer:
(i) After India became independent, the Industrial Finance Corporation of India was established in 1948 to make available long term loans to Industrial projects.

(ii) The Industrial Development Corporation was established in 1954 in order to bring about greater development of the industrial sector.

(iii) Due to the development of industries, many opportunities for employment become available.

(iv) On the whole, it helps in the progress of the country.

(v) Thus the standard of life in the country improves.

B. Write the answer in 25 to 30 words:

Question 1.
What efforts are made by our government to promote agricultural industries?
Answer:
The following efforts are made by our Government to promote agriculture and industries:

(i) To encourage farming, loans are given to farmers through rural banks and cooperative institutions.

(ii) Study visits, agricultural outdoor trips and farmers’ get-togethers are organised through the Panchayat Samitis to bring about improvements in agriculture.

(iii) Tools and implements, seeds and fertilisers are also supplied. The farmers are given training regarding soil testing, nursery of fruit plants, pisciculture, poultry, cattle and goat rearing, dairy farming, etc.

(iv) Guidance is given to farmers by a district level training institute. Financial help is given to build warehouses for storing the farm produce.

Question 2.
How is employment generated in the tourism sector?
Answer:
(i) The facilities for tourists to stay, travel, etc. are provided through the Tourism Development Corporation.
(ii) Sale of curios and the hotel industry thrives in tourist places.
(iii) In some places, there are guides who give information to tourists about that area.
(iv) Sometimes when vehicles don’t reach the destination in some remote areas and difficult to reach tourist places, the local people help the tourists in return for a fee.
Thus, employment opportunities are generated out of these needs.

Question 3.
Which industries in India are based on forests?
Answer:
(i) Government has reserved some forests for the industries based on forests.
(ii) The task of conservation of the forests is done by the Central government, the State government, and by the local people.
(iii) Forests are necessary for the raw material for industries like construction, paper, newsprint, silk, matchboxes, medicinal herbs, honey, lacquer, and raw material needed for paint.

Question 4.
Write a short note on the leather industry in India.
Answer:
(i) It is a big industry in India. It is primarily export-oriented.
(ii) The Council for Leather Export is the main trade promotion organization for Indian leather Industry.
(iii) The Indian leather industry contributes almost 13% of world’s leather production.
(iv) India is the second largest producer of footwear and leather garments in the world.

4. Complete the table:

Question 1.

Goods imported in India	………………….
Goods exported from India	……………………

Answer:

Goods imported in India	When planning started in 1951, the import of industrial goods and raw material required for production increased. India’s imports included machines, iron, mineral oil, fertilisers, medicines, etc.
Goods exported from India	India also gave impetus to exports after independence in order to gain valuable foreign exchange. India’s exports included tea, coffee, spices, cotton textiles, leather, footwear, pearls, precious stones, etc.

Class 9 History Chapter 8 Industry and Trade Additional Important Questions and Answers

Choose the correct option from the given options and rewrite the statements:

Question 1.
Market mechanisms like ______ enables the craftsmen from rural and urban areas to get a market for their wares.
(a) Dilli Haat
(b) Mumbai Market
(c) Handloom Emporium
(d) Handicraft Expo.
Answer:
(a) Dilli Haat

Question 2.
The textile industry forms ______ % of the total industrial production.
(a) 17
(b) 14
(c) 16
(d) 15
Answer:
(b) 14

Question 3.
________ industry functions under the Ministry of Textiles.
(a) Automobile
(b) Cement
(c) Leather
(d) Silk
Answer:
(d) Silk

Question 4.
_______ is a scheme that helps weavers through self-finance groups and nongovernmental organisations.
(a) MNREGA
(b) Employment Generation Program
(c) Swarnajayanti Gram Swarojgar Yojana
(d) Mega Cluster
Answer:
(d) Mega Cluster

Question 5.
Industrial Finance Corporation of India was established in _______.
(a) 1948
(b) 1949
(c) 1951
(d) 1991
Answer:
(a) 1948

Question 6.
Industrial Development Corporation was established in ________.
(a) 1955
(b) 1956
(c) 1957
(d)1954
Answer:
(d)1954

Question 7.
Textile Committee Act was passed in ________.
(a)1961
(b) 1960
(c) 1963
(d) 1964
Answer:
(c) 1963

Question 8.
Industrial Licensing Policy was formulated in _______.
(а) 1970
(b) 1980
(c)1990
(d) 1991
Answer:
(а) 1970

Identify and write the wrong pair in the following sets:

Question 1.
(1) Industrial Licensing policy – 1970
(2) Textile Committee Act – 1963
(3) Industrial Finance Corporation of India – 1948
(4) Industrial Development Corporation – 1958
Answer:
Wrong Pair: Industrial Development Corporation -1958.

Question 2.
(1) Mega cluster – Welfare scheme for weavers.
(2) Dilli Haat – Enables the craftsmen to get a market
(3) Cement Industry – Sunrise sector
(4) Leather Industry – Export Oriented
Answer:
Wrong Pair: Cement Industry – Sunrise sector.

Question 3.
(1) Hand Sculpting – labour intensive
(2) Silk Industry – Ministry of textiles
(3) Khadi and Village Industry Commission – Fourth five year plan
(4) Tourism Development Corporation – facilities for tourist
Answer:
Wrong Pair: Khadi and Village Industry Commission -Fourth five year plan

Do as Directed:

Question 1.
Arrange the following in chronological order:
(i) Textile Committee Act
(ii) Industrial Finance Corporation of India was established
(iii) Industrial Licensing Policy
(iv) Industrial Development Corporation was established
Answer:
(i) Industrial Finance Corporation of India was established in 1948
(ii) Industrial Development Corporation was established in 1954
(iii) Textile Committee Act 1963
(iv) Industrial Licensing Policy of 1970

Write short notes on:

Question 1.
Hand sculpting Industry.
Answer:
(i) This is a labour intensive craft.
(ii) Sculptors got employment due to the capacity of the craft to absorb more craftsmen, small investment, more profits, preference to exports and possibility of earning more foreign exchange.
(iii) Several cities have market mechanisms like ‘Dilli Haat’ which enables the craftsmen from rural and urban areas to get a market for their wares.

Question 2.
‘Mega cluster’ scheme and Jute Industry.
Answer:
(i) ‘Mega cluster’ is a scheme that helps weavers through self-finance groups and non-governmental organisations.
(ii) Help is given in the form of raw material, design banks, development of technology and welfare of the weavers.
(iii) India is the top ranking country in jute production. India is a major exporter of jute products.
(iv) We get cloth, sack cloth and ropes from jute.

Question 3.
Cement Industry.
Answer:
(i) The role of cement industry is important in the development of housing and infrastructure.
(ii) This industry is one of the most technologically advanced. India is currently an important producer of cement in the world.

Question 4.
Salt and Bicycle industry.
Answer:
(i) India is one of the top producers of salt in the world.
(ii) The annual production of salt in India is 200 lakh tons.
(iii) The production of iodised salt is 60 lakh tons.
(iv) India is a leading producer of bicycles in the world.
(v) Bicycles are made in the states of Punjab and Tamil Nadu.
(vi) The main centre of bicycle manufacturing in India is Ludhiana.
(vii) India exports bicycles to countries like Nigeria, Mexico, Kenya, Uganda and Brazil.

Question 5.
Mineral wealth and fisheries.
Answer:
(i) The availability of the minerals, iron and coal plays a major role in the industrial development of the country.
(ii) We have adequate stores of iron, manganese, coal and mineral oil in our country.
(iii) Fisheries include sea water fish and fresh water fish found in rivers, canals, ponds and lakes.
(iv) Harbours have been built or old harbours have been redeveloped, fish seed incubation centres and fishing industry training centres have been provided for the growth of this industry.

Question 6.
Khadi and Village Industries Commission.
Answer:
(i) The Khadi and Village Industries Commission was established to give impetus to industrialisation in rural areas.
(ii) The main objectives behind the establishment of the corporation were to develop the traditional industries, handicrafts, cottage industries and to encourage industries that use the material and human resources available at the local level and make the villages self-reliant by creating employment there.

Explain the statements with reason:

Question 1.
Agriculture fulfills man’s basic needs.
Answer:
(i) The major occupation in India is agriculture and other tasks based on agriculture.
(ii) Many varieties of crops are grown. Jowar, wheat, rice, pulses and oilseeds are mainly produced.
(iii) Agriculture also includes the production of fruits and vegetables. Nowadays, industries processing these fruits and vegetables have come up.
(iv) Thus, Agriculture fulfills man’s basic needs.

Read the following passage and answer the questions.

Forest resources: The government has reserved some forests for the industries based on forests. The task of conservation of the forests is done by the Central government, the State government, and by the local, people. Forests are necessary for the raw material for industries like construction, paper, newsprint, silk, matchboxes, medicinal herbs, honey lacquer, and raw material needed for paint.
Fisheries: Fisheries include seawater fish and fresh i water fish found in rivers, canals, ponds, and lakes.
Tourism: India has a rich cultural heritage. There are places of worship of different religions, pilgrimage centers, confluences of rivers, forts, caves, etc. all over our country. Tourists from our country as well as from abroad travel in India throughout the year.
The facilities for tourists to stay, travel, etc. are, provided through the Tourism Development Corporation. The sale of curios and the hotel industry thrives in tourist places. In some places, there are guides who give information, to tourists about that area. Sometimes when vehicles, don’t reach the destination in some remote and difficult to reach tourist places, the local people help the tourists in return for a fee. Employment, opportunities are generated out of these needs.

Question 1.
Name a few industries which depend upon forest resources for their production.
Answer:
A few industries which depend upon forest resources are – construction, newsprint, paper and silk industry. Even lacquer is required to paint and coat furniture, honey and herbs for medicinal use.

Question 2.
Do you think Tourism is an industry? How has this industry prospered in India so far?
Answer:
Yes, tourism is an industry. India attracts a lot of foreign tourists every year as it is a home of many pilgrimage places, has a confluence of rivers, scenic landscapes and historical monuments. The Tourism Development Corporation provides all facilities of stay and travel in India. Not just the guides but also local people of the tourist spots help the tourists to reach difficult destinations with ease. The sale of curios and the hotel industry thrives in tourist places. Hence India’s tourism is prospering at a fast pace.

Question 3.
Do you agree that cross-border terrorism in Kashmir has affected tourism in this region? what can be done to protect tourism there?
Answer:
It is true that cross-border terrorism has affected tourism in the Kashmir region. I think the following are a few measures which can ensure protection of tourists:

(i) The army and other paramilitary forces should become more tourist – friendly and convince them to refrain from visiting terror-prone areas.

(ii) Bilateral talks at the governmental level can also play a vital role in preventing unpleasant experiences for the tourists.

(iii) During skirmishes or conflicts of any kind, the tourists should be restricted from visiting the valley. Those already stuck in the regions during sudden eruption of violence must be given a safe passage with priority.

Answer the following questions in detail:

Question 1.
Explain Agriculture in India.
Answer:
(i) Agriculture, in India, is practised using traditional and modern methods. Tasks are performed using bullocks as well as machines.

(ii) Seventy percent of Indian society depends upon jobs related to agriculture and agricultural production.

(iii) Agriculture and animal husbandry are practised in villages. In this industry the participation of women is equal to that of men.

(iv) Variety of crops like jowar, wheat, rice, pulses and oilseeds, cotton and sugarcane are produced in India.

(v) To encourage farming, loans are given to farmers through rural banks and cooperative institutions.

(vi) Study visits, agricultural outdoor trips and farmers’ get-togethers are organised through the Panchayat Samitis to bring about improvements in agriculture.

(vii) Tools and implements, seeds and fertilisers are also supplied. The farmers are given training regarding soil testing, nursery of fruit plants, pisciculture, poultry, cattle and goat rearing, dairy farming, etc.

(viii) Guidance is given to farmers by a district level training institute. Financial help is given to build warehouses for storing the farm produce.

(ix) Modern techniques like drip irrigation, organic farming are used for farming.

Question 2.
Industries in India.
Answer:
(i) Textile industry: The textile industry forms 14% of the total industrial production.
It includes the powerloom and the handloom industries. The handloom industries are labour-intensive. According to the ‘Textile Committee Act 1963’, a Textile Committee has been established. This committee sets the quality standards for textiles manufactured for sale in the internal market as well as for export.

(ii) Silk industry: This industry functions under the Ministry of Textiles. The research about the species of the silkworm and mulberry trees is done in the Seribiotic Research Laboratory at Bengaluru. This industry is primarily in the States of Karnataka, Andhra Pradesh, West Bengal, Jammu and Kashmir. Now it is being spread in states with predominantly tribal populations.

(iii) Jute industry: India is the top ranking country in jute production. India is a major exporter of jute products. We get cloth, sack cloth and ropes from jute.

(iv) Hand sculpting: This is a labour intensive craft. Sculptors got employment due to the capacity of the craft to absorb more craftsmen, small investment, more profits, preference to exports and possibility of earning more foreign exchange. Several cities have market mechanisms like ‘Dilli Haat’ which enables the craftsmen from rural and urban areas to get a market for their wares.

(v) Automobile industry: India is one of the major producers of vehicles. Vehicles are exported to 40 countries from India. The automobile industry is called the ‘sunrise sector’ in India. India’s tractor industry is the biggest in the world. One third of the tractors manufactured world-wide are produced in India. Tractors manufactured in India are exported to Turkey, Malaysia and several countries in Africa.

(vi) Cement industry: The role of cement industry is important in the development of housing and infrastructure. This industry is one of the most technologically advanced. India is currently an important producer of cement in the world.

(vii) Leather industry: It is a big industry in India. It is primarily export oriented.

(viii) Salt industry: India is one of the top producers of salt in the world. The annual production of salt in India is 200 lakh tons. The production of iodised salt is 60 lakh tons.

(ix) Bicycle industry: India is a leading producer of bicycles in the world. Bicycles are made in the States of Punjab and Tamil Nadu. The main centre of bicycle manufacturing in India is Ludhiana. India exports bicycles to countries like Nigeria, Mexico, Kenya, Uganda and Brazil.

(x) Khadi and village industry: The Khadi and Village Industries Commission was established to give impetus to industrialization in rural areas. The main objectives behind the establishment of the corporation were to develop the traditional industries, handicrafts, cottage industries and to encourage industries that use the material and human resources available at the local level and make the villages self-reliant by creating employment there.

Question 3.
India’s imports and exports or foreign trade.
Answer:
(i) When planning started in 1951, import of industrial goods and raw material was required for increasing the production.
(ii) India’s imports included machines, iron, mineral oil, fertilisers, medicines, etc.
(iii) India also gave impetus to exports after independence in order to gain valuable foreign exchange.
(iv) India’s exports included tea, coffee, spices, cotton textiles, leather, footwear, pearls, precious stones, etc.

Question 4.
Explain the policy of the Central Government.
Answer:
(i) In the fourth five year plan, focus was placed on paper industry, pharmaceutical industry, motor-tractor industry, leather goods, textile industry, food processing industry, oil, colour, sugar industries, etc.

(ii) According to the Industrial Licensing Policy of 1970, all those factories requiring an investment of more than 5 crore rupees were to be included as heavy industries.

(iii) The big industrial houses and foreign companies were allowed to invest in heavy industries that were not reserved for the public sector.

(iv) As a result of this policy, by the end of 1972,3 lakh 18 thousand small industries were registered with the government registration office.

Question 5.
Write a note on Silk Industry.
Answer:
(i) The silk industry functions under the Ministry of Textiles.
(ii) The research about the species of the silkworm and mulberry trees is done in the Seribiotic Research Laboratory at Bengaluru.
(iii) This industry is primarily in the States of Karnataka, Andhra Pradesh, West Bengal and Jammu and Kashmir.
(iv) Now it is being spread in States with predominantly tribal populations.

Balbharti Maharashtra State Board Class 9 Geography Solutions Chapter 8 Introduction to Economics Notes, Textbook Exercise Important Questions and Answers.

Maharashtra State Board Class 9 Geography Solutions Chapter 8 Introduction to Economics

Class 9 Geography Chapter 8 Introduction to Economics Textbook Questions and Answers

1. Explain the types of economies by filling correct information in the place of questions in the circle.

Answer:

2. Give an explanation:

Question 1.
The economy begins at home.
Answer:

• Household finance is related to income and expenditure.
• Every household has unlimited expenditure and the income earned is limited.
• The household has to make a choice regarding how it has to spend its limited resources.
• Management of this limited income to meet the unlimited expenses is Economics.
• As we manage the finance of our family, similarly the villages/cities, states, countries and the whole world needs to have economic management. So we say Economy begins at home.

Question 2.
India’s economy is of mixed type.
Answer:

• Mixed economy is a combination of Capitalism and Socialism.
• India is said to be a Mixed economy because there is a co-existence of both public and the private sectors.
• The private sector undertakes production for the profit motive, whereas the state tries to achieve social welfare.
• India, therefore, tries to achieve a balance between maximum social welfare for its citizens on one hand and profit on the other. Therefore, India’s economy is of Mixed type.

Question 3.
On the basis of economies, we can divide countries into three groups.
Answer:
The activities related to the production, distribution and consumption of goods and services in a specific region is called economy. On the basis of economies, countries are divided into three groups. Capitalist Economy, Socialist Economy and Mixed Economy.

1. Capitalistic Economy is a kind of economy in which the means of production is in the hands of the private sector, e.g. Germany, Japan, the U.S.A.
2. Socialist Economy is a kind of economy in which the means of production belongs to the society i.e. the government’s control, e.g. China, Russia.
3. Mixed Economy is a kind of economy in which there is a co-existence of both private and public sectors, e.g. India, Sweden, the U.K.

3. Write the following questions in one line:

Question 1.
To which economic factor is the management of individual or family finances related?
Answer:
Management of individual or family finances is related to the economic factor of ‘income and expenditure.

Question 2.
From which Greek word is the term ‘Economics’ derived?
Answer:
The word ‘Economics’ is derived from the Greek word ‘Oikonomia’ which means family management.

Question 3.
In a capitalistic economy, to whom does the ownership and management of means of production belong?
Answer:
In a Capitalistic Economy, the ownership and management of means of production belong to the private sector.

Question 4.
What do you mean by globalisation?
Answer:
Globalisation means aligning the country’s economy with the world economy.

Class 9 Geography Chapter 8 Introduction to Economics Intext Questions and Answers

Can you tell?
Suppose this is your expenditure this month and your monthly income is? 20,000. To strike a balance between your income and your expenditure, decide that will be your preferences for expenditure.

Rewrite the table according to your preferences and discuss in class.

Sr.No.	—	Estimated Expenditure (₹)
1.	Daily food	6,000
2.	Buying two sets of Uniform	2,000
3.	School Stationery	500
4.	Medical expenditure	450
5.	Recreation	500
6.	Mobile Bill	1,000
7.	Vegetables, Fruits, etc.	1,000
8.	Public transport (bus, railway, rick-shaw, etc.)	2,600
9.	Electricity Bill	1,500
10.	Tourism	4,000
11.	Bank Installment	3,000
	Total Expenditure	22,550

Answer:
Income And Expenditure Statement

• Preferences have been rearranged to their urgency.
• Most urgent wants are placed on the top. Least urgent wants are placed at the bottom.
• Expenses have been cut down wherever possible.
• Money spent on tourism is nil.
• Mobile bill has been reduced to? 500 from? 1000.
• And Savings equals? 3000.

Can you do it?

Question 1.
Suppose you are the finance minister of an agrarian country. Giving priority to the overall development of the country, make a five-point program.
Answer:
As a Finance Minister of an Agrarian country like India, I would focus on transforming India in five areas:

• Modernization of agriculture, encouragement to export-oriented agro-processing industries.
• Education, skill-building, and healthcare.
• Information and communication technology.
• Infrastructure development for rural industrialization.
• Spirit of Entrepreneurship.

Class 9 Geography Chapter 8 Introduction to Economics Additional Important Questions and Answers

Complete the statements choosing the correct option:

Question 1.
The term economics’ is derived from Greek word
(a) oikomonia
(b) oikonomica
(c) oikonomia
(d) oikonomics
Answer:
(c) oikonomia

Question 2.
China and Russia have adopted type of economy.
(a) Socialistic
(b) Capitalistic
(c) Mixed
(d) None of these
Answer:
(a) Socialistic

Question 3.
The main motive of a economy is to earn profit.
(a) Mixed
(b) Capitalistic
(c) Simple
(d) Socialistic
Answer:
(b) Capitalistic

Question 4.
The main aim of Socialistic economy is to achieve
(a) social welfare
(b) profit
(c) injustice
(d) tolerance
Answer:
(a) social welfare

Question 5.
Germany is an example of a country which has adopted economy.
(a) Simple
(b) Socialistic
(c) Mixed
(d) Capitalistic
Answer:
(d) Capitalistic

Question 6.
Adam Smith has defined economics as the
(a) science of knowledge
(b) science of wealth
(c) science of peace
(d) science of needs
Answer:
(b) science of wealth

Question 7.
means making the country’s economy aligned with world economy.
(a) Liberalisation
(b) Privatisation
(c) Globalisation
(d) None of these
Answer:
(c) Globalisation

Question 8.
Economics is an important science.
(a) social
(b) political
(c) physical
(d) alternative
Answer:
(a) social

Question 9.
One of the main functions of the economy is to the production cost
(a) maximize
(b) inflate
(c) increase
(d) minimize
Answer:
(d) minimize

Question 10.
An economy strives to create a balance between resources and needs.
(a) unlimited, limited
(b) limited, unlimited
(c) plentiful, limited
(d) limited, scarce
Answer:
(b) limited, unlimited

Question 11.
is known as the Father of Economics.
(a) Lionel Robbins
(b) Prof. Samuelson
(c) Amartya Sen
(d) Adam Smith
Answer:
(d) Adam Smith

Question 12.
Economics is a science which studies human behaviour as a relationship between and scarce which have alternative uses.
(a) means, ends
(b) people, resources
(c) money, land
(d) ends, means
Answer:
(d) ends, means

Question 13.
We understand from economics, how to use, money, land and effectively.
(a) minerals, factory
(b) time, labour
(c) food grains, machines
(d) people, power
Answer:
(b) time, labour

Question 14.
On a global level, there are types of economies.
(a) four
(b) two
(c) three
(d) five
Answer:
(c) three

Question 15.
economy is a borderless economy.
(a) State
(b) Town
(c) Village
(d) World
Answer:
(d) World

Question 16.
In Globalisation, there is trade and all restrictions on are set aside.
(a) restricted, economy
(b) free, investments
(c) no, activity
(d) zero, labour
Answer:
(b) free, investments

Match the column

Group A	Group B
(1) Capitalist economy	(a) India
(2) Socialist economy	(b) USA
(3) Mixed economy	(c) Russia

Answer:
(1 – b),
(2 – c),
(3 – a)

Answer the following questions in one sentence each:

Question 1.
Define Economics.
Answer:
According to Lionel Robbins, “Economics is a science which studies human behaviour as a relationship between ends and scarce means which have alternative uses”.

Question 2.
What is an Economy?
Answer:
The activities related to the production, distribution and consumption of goods and services in a specific region is called an economy.

Question 3.
What is a Capitalistic Economy?
Answer:
The economy in which the ownership and management of the means of production is in the hands of private individuals is called as a Capitalistic Economy.

Question 4.
What is the main aim of a Capitalistic Economy?
Answer:
The main aim of a Capitalistic Economy is to earn maximum profit.

Question 5.
Which countries have adopted Capitalistic Economy?
Answer:
Germany, Japan and USA are the examples of countries which have adopted Capitalistic economy.

Question 6.
What do you mean by Socialistic economy?
Answer:
The economy in which the means of production belong to the society as a whole i.e. the government’s control is known as a Socialistic economy.

Question 7.
What is the main aim of a Socialistic economy?
Answer:
The main aim of a Socialistic economy is to achieve social welfare.

Question 8.
Name Adam Smith’s book and year of publication.
Answer:
Adam Smith’s book is titled ‘Wealth of Nations/ and was published in 1776.

Question 9.
What are the types of economy at the global level?
Answer:
Capitalist, Socialist and Mixed Economy are the types of economy at the global level

Question 10.
Which economist is known as Father of Economics?
Answer:
Adam Smith is known as Father of Economics.

Question 11.
How does Adam Smith describe Economics in his ‘Wealth of Nations’?
Answer:
In the book ‘Wealth of Nations’ Adam Smith describes Economics as ‘the science of wealth’.

Question 12.
What is the World Economy?
Answer:
World Economy is a borderless economy in which natural resources, profit, services, capital, labour and technology flow freely across the countries.

Distinguish between Capitalist Economy and Socialist Economy.
Answer:

Capitalist Economy	Socialist Economy
(i) Ownership and management of means of production is in the hands of the private individuals. (ii) To earn maximum profit is the main aim of the Capitalist Economy. (iii) The USA, Germany and Japan have Capitalist Economy.	The means of production belong to the society as a whole and are under the control of the government. To achieve social welfare is the main aim of the Socialist Economy. Russia and China have Socialist Economy.

Answer the following in detail.

Question 1.
Explain the functions of an economy.
Answer:
Every country has a different economy. But the main functions of an economy are similar. Some of the main functions of an economy are:

• Deciding the product and quantity of its production.
• Deciding for whom will the goods be produced.
• Minimising the production costs as much as possible.
• Distributing national income1 according to social and economic justice2.
• Making appropriate provisions3 for the economic needs of the future.

Question 2.
Explain the importance of Economics.
Answer:
Economics is an important Social Science Subject.

• We use Economics on a large scale in agriculture, trade, finance, administration, law and in our daily life.
• Economics holds a paramount4 importance in the overall social development of humans.

Question 3.
Name the factors affecting an economy.
Answer:
The factors affecting an economy are:

• Geographical area and natural resources.
• Population
• Occupations
• Political Sovereignty

Question 4.
Write a description of Economics given by Lionel Robbins.
Answer:

• According to Lionel Robbins, “Economics is a science which studies human behaviour as a relationship between ends and scarce means which have alternative uses”.
• Since human wants are unlimited their priority is determined.
• The satisfaction of the basic needs are given priority.
• A scarce resource like land can be used either for agriculture or industries or development of infrastructure.
• In this way, Economics studies human behaviour related to unlimited wants with limited resources that have alternative uses.

Question 5.
Explain the nature of the Capitalist Economy.
Answer:

• The ownership and control of means of production is in the hands of the private individuals in the Capitalist Economy.
• There is no control of the government over economic activities in their ‘Free Market Economy’.
• The objective of economic activities is to earn maximum profit.
• The capitalist economy exists in Germany, Japan and the USA.

Question 6.
Explain the nature of the Socialist Economy.
Answer:

• There is no private ownership of the means of production as these belong to the society as a whole.
• There is total control of the State over the economy.
• The objective of the economic activities is the fulfilment of social needs (social welfare).
• Socialist economy exists in Russia and China.

Question 7.
What are the main features (components) of the economy?
Answer:

1. The economy is a system related to the production, distribution and consumption of goods and services in a specific region.
2. The main features of an economy are :
   • Well defined geographical area.
   • Population, i.e. the people living within that geographical area and undertaking various economic activities.
   • Natural resources to undertake economic activities.
   • Political sovereignty that exercises control over the economy.

Question 8.
Explain the nature of globalisation.
Answer:

• Globalisation means aligning the economy of the country with the world economy.
• There is free trade and all restrictions on (foreign) investments are set aside.
• There is free flow of natural resources, profit, services, capital, labour and technology across the world.
• The aim is to establish a borderless economy.
• The recent economic policies of the government are leading the economy towards globalisation.