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प्रश्न
State the energy changes in the following case while in use:
an electric bulb
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उत्तर
Electrical energy into light energy
संबंधित प्रश्न
State one important advantage and disadvantage each of using nuclear energy for producing electricity.
Can a body possess energy even when it is not in motion ? Explain your answer with an example.
Differentiate between the potential energy (U) and the kinetic energy (K).
What do you understand by the potential energy of the body?
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
A ball of mass 50 g falls from a height of 2m and rebounds from the ground to 1.6 m. Find:
(i) The potential energy possessed by the ball when initially at rest.
(ii) The kinetic energy of the ball before it hits the ground.
(iii) The final potential energy of the ball.
(iv) The loss in kinetic energy of the ball on collision. (Take: g = 10N kg−1)
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A compressed spring
