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प्रश्न
Give one example when:
Heat energy changes to kinetic energy.
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उत्तर
In the automobile engine, heat energy changes to kinetic energy.
संबंधित प्रश्न
Define calorific value of a fuel.
A certain form of energy which is not sourced directly or indirectly from the sun and does not cause any pollution is very easily converted into electricity. This form of energy is, however, not available everywhere. Moreover, it is technically very difficult and expensive to obtain it. Name the form of energy.
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
State two uses of solar cells.
Name the energy changes for the following
human body
A body of mass 5 kg falls from a height of 10 m to 4 m. Calculate:
The total energy possessed by the body at any instant? (Take g = 10 ms-2).
What kind of energy is possessed in a situation when?
A fish moving in the water.
What kind of energy is possessed in a situation when?
A shooting arrow.
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?
What is the main energy transformation that occur in:
Charging of a battery.
