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प्रश्न
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उत्तर
Whenever one form of energy dissipates or disappears, another form of equivalent amount of energy is produced; this is referred to as transformation of energy.
E.g. when a particular switch is pressed electric lamps light up owing to the heat produced in the filament. This is the transformation of electrical energy to heat and light energy.
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संबंधित प्रश्न
Name five different forms of energy.
A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain same ?
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 highest point .
Select the renewable and non-renewable sources of energy from the following:
Diesel
How is the solar energy used to generate electricity in a solar power plant?
State two uses of solar cells.
What do you understand by the potential energy of the body?
State the energy changes which take place when:
An air gun is loaded and then fired.
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)
