Work
When a force F moves through a displacement s in the direction of the force,
the work W done is equal to the multiplied by the .
Work =Force x displacement , W = Fs

The Joule
One joule is the done when a force of one
acts for a distance of one in the direction of the force.
1 J = 1 N m

Energy
Energy is the ability to do . The unit of energy is the .

The Principle of Conservation of Energy
Energy cannot be or destroyed but can only be from one form to another.

Kinetic Energy
The energy (E_k) of a body is the energy it has due to its .

Potential Energy
The energy (E_p)of a body is the energy it has due to its in a force .

Renewable Sources of Energy
A source of energy that does not get up is called a renewable source of energy.

Power
Power is the at which work is done.
or
Power is the rate at which is converted from one form to another.
The unit of power is the .