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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
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
State the energy changes in the following case while in use:
a ceiling fan
How is wind energy used to produce electricity?
Explain the principle of producing electricity using the nuclear energy.
Name the energy changes for the following:
electric ball
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
Name a device in which solar energy is converted into electricity state its two uses.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
A body is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy as its velocity becomes zero?
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A moving cricket ball
