1 Watt = ……

Work done by gravitational force on a freely falling body ………

Work done by friction on a body moving on plain ground ……

Work done by a porter standing with luggage on his head is ………

A boy pushes wall. The work done by the boy is

Human beings or machines need …… to do work.

The energy possessed by a wounded spring in a toy car is

The energy possessed by a running athlete is

Energy possessed by the blowing wind is …..… energy.

Water stored in a dam possesses

The energy possessed by a body due to its height or position is …… energy.

The sum of the kinetic energy and the potential energy of an object is called its ……… energy.

In fuels like petroleum, coal, etc ……………… energy is stored in them.

Ratio of doing work or rate of transfer of energy is defined as ……

The water stored in overhead tanks, possesses ……… energy.