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प्रश्न
Name the form of mechanical energy, which is put to use.
उत्तर
Kinetic energy.
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संबंधित प्रश्न
Name the type of energy (kinetic or potential) possessed by the following:
A compressed spring.
State the energy changes in the following case while in use:
an electric cell in a circuit
Explain the principle of generating electricity from hydro energy.
State the energy transformation on the following:
Electricity is obtained from wind energy.
Give three examples of bodies possessing kinetic energy.
State two advantages and two disadvantages of using hydro-energy for producing electricity.
State the energy changes which take place when:
A magnesium ribbon burns in air.
State the energy changes which take place when:
A battery lighting up a bulb.
A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground? (g = 9.8 m s−2)
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