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प्रश्न
State the energy transformation on the following:
Electricity obtained from hydro energy.
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उत्तर
The Kinetic energy changes into electricity.
संबंधित प्रश्न
Give one relevant example for the following transformation of energy:
Electrical energy to mechanical 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.
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
Two bodies A and B of masses m and M (M ≫ m) have same kinetic energy. Which body will have more momentum?
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
How much hydro-electric power is generated in India?
State the energy changes which take place when:
Photographic film is exposed to sunlight.
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
A body of mass m falls from a height h1 to a height h2, above the ground (h1 > h2). What is the loss of potential energy?
Geothermal energy is:
