Work Done

Work done is calculated as:

$W = Fd$

where $F$ is the force (N) and $d$ is the distance moved in the direction of the force (m).

If the force and the direction of movement are not aligned, only the component of the force in the direction of movement does work.

Work done against friction is transferred to thermal energy. Work done against gravity increases gravitational potential energy. 1 joule = 1 newton metre.