In the metric system, the joule is the unit of measure for work. In physics, a force does work on an object when the object moves in the direction of the force. The formula for work states that it is equal to a force multiplied by the distance.
The formula is W = F * d, where F represents the force in newtons and d is the distance in meters. The newton-meter is equivalent to the joule. When work occurs, there is a transfer of energy.
Scientists can also measure the work done by a gas when it expands. In this case, work (W) is the product of the pressure (p) and the change in the volume (delta V): W= p * delta (V).