Advertisements
Advertisements
प्रश्न
State the energy changes which take place when:
A car moves up a hill.
Advertisements
उत्तर
The kinetic energy of moving car changes to potential energy.
APPEARS IN
संबंधित प्रश्न
Give one example of a body that has potential energy, due to its position at a height.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
What do you understand by mechanical energy?
What kind of energy is possessed in a situation when?
A stone, in a stretched catapult.
What happens to the K.E. when
(i) the mass of the body is doubled at a constant velocity and
(ii) the velocity of the body is doubled at constant mass?
State the energy changes which take place when:
Photographic film is exposed to sunlight.
Give one example when:
Mechanical energy changes to electric energy.
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)
What is meant by energy?
