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प्रश्न
Give one example when:
Chemical energy changes to light energy.
उत्तर
During the burning of magnesium, chemical energy changes to light energy.
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संबंधित प्रश्न
Name the form of energy which a body may possess even when it is not in motion. Give an example to support your answer.
State two uses of solar cells.
State two disadvantages of using nuclear energy for producing electricity.
State the energy transformation on the following:
Electricity is obtained from hydro energy.
Name two examples in which the mechanical energy of a system remains constant.
Write five forms of energy.
Write the type of energy possessed in the following case:
A falling apple
Give one example when:
Kinetic energy changes to heat energy.
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.
