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प्रश्न
State the energy changes which take place when:
Photographic film is exposed to sunlight.
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उत्तर
The light energy changes to chemical energy
संबंधित प्रश्न
Fill in the blank
The energy possessed by a body due to its motion is called ______ energy.
Write the type of energy possessed in the following case:
A bent bow
Write the type of energy possessed in the following case:
A moving cricket ball.
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
State the energy changes which take place when:
An air gun is loaded and then fired.
Give one example when:
Sound energy changes to electric energy.
Give one example when:
Electrical energy to heat energy.
A body of mass 0.2 kg falls from a height of 10 m to a height of 6 m above the ground. Find the loss in potential energy taking place in the body. [g = 10ms−2]
A body of mass 50 kg has a momentum of 3000 kg−1 ms. Calculate:
(j) the kinetic energy of the body.
(ii) the velocity of the body.
