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प्रश्न
State the energy transformation on the following:
Electricity is obtained from hydro energy.
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उत्तर
Mechanical energy into electrical energy.
संबंधित प्रश्न
Give one relevant example for the following transformation of energy:
Electrical energy to mechanical energy.
What do you understand by the kinetic energy of a body?
What is meant by the renewable and non-renewable sources of energy? Distinguish between them giving two examples of weach.
Select the renewable and non-renewable sources of energy from the following:
Oil
Name the form of energy in which potential energy can change.
What kind of energy is possessed in a situation when?
A stone, in a stretched catapult.
A boy sits and stands repeatedly. Draw a graph showing the variation of potential energy with time.
What is the form of that graph between
(i) K.E. and velocity for a constant mass?
(ii) K.E. and mass for a constant velocity?
A girl of mass 35 kg climbs up from the first floor of a building at a height 4 m above the ground to the third floor at a height 12 m above the ground. What will be the increase in her gravitational potential energy? [g = 10 ms-2]
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
