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प्रश्न
State the energy changes which take place when:
A body thrown vertically upwards from the ground.
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उत्तर
The kinetic energy changes to potential energy.
संबंधित प्रश्न
Define calorific value of a fuel.
Name five different forms of energy.
Give one example to show the conversion of potential energy to kinetic energy when put in use.
Two bodies A and B of masses m and M (M ≫ m) have same kinetic energy. Which body will have more momentum?
Is it possible that a body may possess energy even when it is not in motion?
What kind of energy is possessed in a situation when?
A cocked up spring of air gun.
Name a device in which solar energy is converted into electricity state its two uses.
Give one example when:
Light energy changes to chemical 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.
Nuclear fission is
