Advertisements
Advertisements
प्रश्न
Write five forms of energy.
Advertisements
उत्तर
(i) Mechanical energy
(ii) Chemical energy
(iii) Solar energy
(iv) Heat energy
(v) Light energy.
संबंधित प्रश्न
State one important advantage and disadvantage each of using nuclear energy for producing electricity.
State the changes in form of energy while producing hydro electricity.
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?
Select the renewable and non-renewable sources of energy from the following:
Coal
What is geo thermal energy? Explain in brief.
State two advantages of producing electricity from solar energy.
State the energy transformation on the following:
Electricity is obtained from hydro energy.
A ball of mass 0.5 kg slows down from a speed of 5m/s-1 to that of 3m/s-1. Calculate the change in kinetic energy of the ball.
Write the type of energy possessed in the following case:
A bent bow
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
