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प्रश्न
State two advantages of using wind energy for generating electricity.
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उत्तर
Advantages of using the wind energy:
1. It does not cause any kind of pollution.
2. It is an everlasting source.
संबंधित प्रश्न
State the energy change in the following device while in use:
A loudspeaker
Name the type of energy (kinetic or potential) possessed by the following:
A bullet fired from a gun.
Give one relevant example for the following transformation of energy:
Electrical energy to heat energy.
Name the type of energy (kinetic energy K or potential energy U) possessed in the given cases:
A moving cricket ball
Name the type of energy (kinetic energy K or potential energy U) possessed in the given case:
An arrow shot out of a bow.
State the energy transformation on the following:
Electricity is obtained from wind energy.
State the energy transformation on the following:
Electricity is obtained from nuclear energy.
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).
Obtain an expression for the potential energy of a body of mass m at a height h above the ground.
Give one example when:
Light energy changes to chemical energy.
