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प्रश्न
Give one example of a body that has potential energy, due to its position at a height.
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उत्तर
Water at height has P.E. stored in it. Falling water from a height can be used to do work like turning a wheel.
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संबंधित प्रश्न
Give one example of a body that has potential energy, in due to its state.
Define the term kinetic energy. Give one example of a body which possesses kinetic energy.
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
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 .
State the changes in form of energy while producing hydro electricity.
State the energy changes in the following case while in use:
an electric bulb
Name five renewable sources of energy.
Give one example when:
Electric energy changes to sound energy.
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
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.
