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प्रश्न
State the energy changes which take place when:
Water freezes in the freezing chamber of a fridge.
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उत्तर
The kinetic energy of water molecules is released in the form of heat energy.
संबंधित प्रश्न
Explain how, geothermal energy is used to generate electricity.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A compressed spring
What is wind energy?
State two disadvantages of using nuclear energy for producing electricity.
Name the energy changes for each of the following cases:
dynamo
Give three examples of bodies possessing kinetic energy.
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 falling apple
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.
Find out the types of energy from the following puzzle.
