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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 the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A piece of stone placed on the roof.
Select the renewable and non-renewable sources of energy from the following:
Coal
Select the renewable and non-renewable sources of energy from the following:
Oil
What kind of energy is possessed in a situation when?
A stone lying on the top of roof.
What is the main energy transformation that occur in:
Photosynthesis in green leaves.
State the energy changes which take place when:
Water stored in dams rotates turbine connected to a dynamo.
Give one example when:
Electrical energy to heat energy.
A body of mass 50 kg has a momentum of 3000 kg−1 ms. Calculate:
(j) the kinetic energy of the body.
(ii) the velocity of the body.
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
Nuclear fission is
