Rev. Notes > IGCSE > Energy, Work and Power Previous Topic Energy, Work and Power Next Topic Topics
 Energy Kinetic energy Potential energy Different types of energy Law of conservation of energy Energy resources Work Power

## Work

Work is done when a force displaces an object.

Work can only be done if the system has energy when work is done energy is transferred either to the system or by the system.

Work done = force * distance moved in the direction of the force

W=FxS

The SI unit of work is Joule.

If something is lifted up against the gravitational field then work done is equal to gravitational potential energy

Work done=mgh

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