A cyclist doubles his speed. How will his kinetic energy change: increase, decrease or remain the same?

Write the expression for the kinetic energy of a body explaining the meaning of the symbols used.

Name the form of energy stored in a wound up spring of a watch.

Name the type of energy (kinetic or potential) possessed by the following:

(a) A moving cricket ball.

(b) A stone at rest on the top of a building.

(c) A compressed spring.

(d) A moving bus.

(e) A bullet fired from a gun.

(f) Water flowing in a river.

(g) A stretched rubber band.