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प्रश्न
State different forms of potential energy and give one example of each.
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उत्तर
Different forms of P.E. are as listed below:
(i) Gravitational potential energy: The potential energy possessed by a body due to its position relative to the centre of Earth is called its gravitational potential energy.
Example: A stone at a height has gravitational potential energy due to its raised height.
(ii) Elastic potential energy: The potential energy possessed by a body in the deformed state due to change in its configuration is called its elastic potential energy.
Example: A compressed spring has elastic potential energy due to its compressed state.
संबंधित प्रश्न
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 cell in a circuit
What is ocean? Explain in brief.
Is it possible that a body may possess energy even when it is not in motion?
Write the type of energy possessed in the following case:
A moving cricket ball.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
State the energy changes which take place when:
Burning of coal.
Draw a diagram to show the energy changes in an oscillating simple pendulum. Indicate in your diagram how the total mechanical energy in it remains constant during the oscillation.
What is meant by energy?
