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
Define calorific value of a fuel.
Two toy-cars A and B of masses 500 g and 200 g respectively are moving with the same speed. Which of the two has the greater kinetic energy?
Can a body possess energy even when it is not in motion ? Explain your answer with an example.
Name the type of energy (kinetic or potential) possessed by the following:
A moving bus.
A body of mass m falls down through a height h. Obtain an expression for the work done by the force of gravity.
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
How much hydroelectric power is generated in India?
State the energy changes which take place when:
A car moves up a hill.
State the energy changes which take place when:
A battery lighting up a bulb.
