Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
APPEARS IN
संबंधित प्रश्न
What is nuclear energy?
Can a body possess energy even when it is not in motion ? Explain your answer with an example.
Give one relevant example for the following transformation of energy:
Electrical energy to mechanical energy.
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?
Name the type of energy (kinetic energy K or potential energy U) possessed in the following case:
A piece of stone placed on the roof.
State two advantages of producing electricity from solar energy.
What kind of energy is possessed in a situation when?
A stone lying on the top of roof.
What kind of energy is possessed in a situation when?
A fish moving in the water.
State the energy changes which take place in Electricity is obtained from solar energy.
A moving body weighing 400 N possesses 500 J of kinetic energy. Calculate the velocity with which the body is moving. (g = 10 ms2)
