Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
A bucket full of water .is on the first floor of your house and another identical bucket with same quantity of water is kept on the second floor. Which of the two has greater potential energy ?
State two factors on which the kinetic energy of a moving body depends.
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?
State two characteristic which a source of energy must have.
Why using wood as fuel is not advisable although wood is a renewable source of energy?
Explain the principle of producing electricity using the nuclear energy.
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?
Write the type of energy possessed in the following case:
A moving cricket ball.
Give three examples of bodies possessing potential energy.
State two advantages and two disadvantages of using hydro-energy for producing electricity.
