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प्रश्न
उत्तर
Kinetic energy of a body depends upon:
(i) Mass of the body
(ii) Speed of the body
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संबंधित प्रश्न
An electron emitter must have _____________ work function and ___________ melting point.
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The loss in potential energy of the body,
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Give one example each in which a force does (a) positive work (b) negative work, and (c) zero work.
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(a) Vertical direction, and
(b) Horizontal direction
Fill in the boxe to show the corresponding energy transformation.
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| S. No | Activity | Work done or not done |
| 1. | Pushing the door | |
| 2. | Holding a doll | |
| 3. | Sitting in a bus | |
| 4. | Pushing a wall | |
| 5. | Digging soil |
