When an arrow is shot from a bow, it has kinetic energy in it. Explain briefly from where does it get its kinetic energy.
Important Questions on Work, Energy and Power
A ball is placed on a compressed spring. What form of energy does the spring possess? On releasing the spring, the ball flies away. Give a reason.
What is meant by gravitational potential energy? Derive an expression for it for a body placed at a height above the ground.
Write an expression for the potential energy of a body of mass placed at a height above the earth's surface. State the assumptions made, if any.
Name the form of energy which a body may possess even when it is not in motion. Give an example to support your answer.
What do you understand by the kinetic energy of a body?
A body of mass is moving with a velocity . Write the expression for its kinetic energy.
State the work-energy theorem.
