Physics
Can a body possess energy even when it is not in motion? Explain your answer with an example.
Related Questions
Two bodies A and B of masses 10 kg and 20 kg respectively are at the same height above the ground. Which of the two has greater potential energy?
A body of mass m is moved from ground to a height h. If force of gravity on mass of 1 kg is g newton, find:
(a) the force needed to lift the body,
(b) the work done in lifting the body and
(c) the potential energy stored in the body.
Give an example to show the conversion of potential energy to kinetic energy when put in use.
State the energy changes that occur in a watch spring while it unwinds.