What is the unit of work in physics?

The unit of work in physics is the joule. Work is defined as the product of force and the distance over which that force is applied, in the direction of the force. In the International System of Units (SI), when a force of one newton moves an object a distance of one meter in the direction of the force, the work done is measured as one joule.

This relationship highlights that a joule quantifies the amount of energy transferred when work is performed, linking the concepts of force, displacement, and energy in a clear and measurable way. Understanding this unit is fundamental in various fields of physics, including mechanics, as it helps in calculating energy transformations and the efficiency of machines.