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प्रश्न
Give three examples of bodies possessing potential energy.
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उत्तर
(i) An object kept at a height above the ground.
(ii) A compressed spring, and
(iii) A stretched catapult.
संबंधित प्रश्न
State the energy change in the following device while in use:
A glowing electric bulb.
A certain form of energy which is not sourced directly or indirectly from the sun and does not cause any pollution is very easily converted into electricity. This form of energy is, however, not available everywhere. Moreover, it is technically very difficult and expensive to obtain it. Name the form of energy.
Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A compressed spring
State the energy changes in the following case while in use:
an electric toaster.
What is the main source of energy for earth?
MULTIPLE CHOICE TYPE:
The ultimate source of energy is:
(a) wood
(b) wind
(c) water
(d) sun
Give two examples each of renewable and non-renewable sources of energy?
Give one example when:
Electric energy changes to sound energy.
When and why do clothes smell of naphthalene?
