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प्रश्न
Give one example when:
Sound energy changes to electric energy.
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उत्तर
When we speak in front of the microphone, sound energy changes to electric energy.
संबंधित प्रश्न
What is the source of heat contained in geothermal energy?
Give one relevant example for the following transformation of energy :
Chemical energy to light energy.
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is at the ground.
State the changes in form of energy while producing hydro electricity.
Give one disadvantage of using a solar cell.
What is wind 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).
What kind of energy is possessed in a situation when?
Water stored in dams.
Explain the principle of working of the windmill for generating electricity.
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A compressed spring
