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प्रश्न
State the energy change in the following device while in use:
A glowing electric bulb.
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उत्तर
Electric to heat energy to light energy.
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संबंधित प्रश्न
State the energy change in the following device while in use:
A loudspeaker
Give one example of a body that has potential energy, in due to its state.
Give one relevant example for the following transformations of energy:
Chemical energy to heat energy.
A pebble is thrown up. It goes to a height and then comes back on the ground. State the different changes in form of energy during its motion.
How is kinetic energy possessed by a moving body measured?
What happens to the K.E. when
(i) the mass of the body is doubled at a constant velocity and
(ii) the velocity of the body is doubled at constant mass?
Give one example when:
Mechanical energy changes to electric energy.
Give one example when:
Potential energy changes to electric energy.
A body is thrown vertically upwards. Its velocity keeps on decreasing. What happens to its kinetic energy as its velocity becomes zero?
