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Energy can exist in several forms and ma...

Energy can exist in several forms and may change from one form to another. For each of the following state the energy changes that occur in :
(a) the unwinding of a watch spring.
(b) a loaded truck when started and set in motion
(c) a car going uphill,
(d) photosynthesis in green leaves,
(e) charging of a battery,
(f) respiration,
(g) burning of a match stick.
(h) explosion of crackers

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State the energy changes that occur in the unwinding of a watch spring.

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ICSE- WORK ENERGY AND POWER-EXERCISE-2(B)
  1. A body of mass m is moving with a uniform velocity U. A force is appli...

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  2. A light mass and a heavy mass have equal momentum. Which will have mor...

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  3. Two bodies A and B of masses m and M (M gt gt m) have same kinetic ene...

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  4. Name the three fornis of kinetic energy and give one example of each

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  5. State wo differences between potential energy and kinetic energy

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  6. Complete the following sentences: (a) The kinetic energy of a body is...

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  7. When an arrow is shot from a bow, it has kinetic energy in it. Explain...

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  8. A ball is placed on a compressed spring. What form of energy does the ...

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  9. A pebble is thrown up. It goes to a height and then comes back on the ...

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  10. In what way does the temperature of water at the bottom of a waterfall...

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  11. Name the form of energy in which potential energy can change

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  12. Name the form of mechanical energy, which is put to use for doing work...

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  13. Name six different forms of energy.

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  14. Energy can exist in several forms and may change from one form to anot...

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  15. State the energy changes in the following cases while in use: (a) lo...

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  16. Name the process used for producing electricity from nuclear energy.

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  17. Is it practically possible to convert a form of energy completely into...

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  18. What is degraded energy?

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  19. What do you mean by degradation of energy? Explain it by taking me exa...

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  20. Complete the following sentence: The conversion of part of energy into...

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