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The potential energy of a system increas...

The potential energy of a system increases, if work is done

A

by the system against a conservative force

B

by the system against a non-conservative force

C

upon the system by a conservative force

D

upon the system by a non-conservative force

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The correct Answer is:
A
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PREMIERS PUBLISHERS-WORK, ENERGY AND POWER -VERY SHORT ANSWER QUESTIONS
  1. The potential energy of a system increases, if work is done

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  2. When a work is said to be done? Give some example.

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  3. State the condition under which a force does not work.

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  4. What is the work done by the person in holding 15 kg suitcase while wa...

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  5. What is the work done by the force of tension in the string of simple ...

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  6. What physical quantity does the area under the force-displacement curv...

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  7. Define energy and write its unit and dimension.

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  8. A man run a distance on the level road. The same man ascends up a hill...

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  9. Potential energy

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  10. What is meant by kinetic energy?

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  11. How many joules make up one erg?

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  12. Which physical quantities is / are conserved during elastic and inelas...

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  13. A body is moving at constant speed over a frictionless surface. What i...

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  14. Can a body have momentum without energy?

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  15. Does the work done in raising a suitcase on to platform depend upon ho...

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  16. Can you associate potential energy with non-conservative force?

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  17. A rocket explodes in mid air. How does this affect its total momentum?

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  18. Define watt.

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  19. When a work is said to be done? Give some example.

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  20. State the condition under which a force does not work.

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  21. What is the work done by the person in holding 15 kg suitcase while wa...

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