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प्रश्न
Give one example of a body that has potential energy, in due to its state.
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उत्तर
A wound-up watch spring holds potential energy since its coils are wound up.
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संबंधित प्रश्न
Select the correct alternatives
The energy stored in an electric cell is
State the energy changes in the following case while in use:
an electric toaster.
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
A body of mass 5 kg falls from a height of 10 m to 4 m. Calculate:
The total energy possessed by the body at any instant? (Take g = 10 ms-2).
Give one example when:
Electric energy changes to potential energy.
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Match the pairs.
| Group 'A' | Group 'B' | ||
| (1) | Rolling object | (a) | Heat energy |
| (2) | Food | (b) | Atomic energy |
| (3) | Stretched bow | (c) | Kinetic energy |
| (4) | Sunlight | (d) | Potential energy |
| (5) | Uranium |
(e)
|
Chemical energy
|
Can you tell?
Describe one natural chain of transformation of energy.
