Question

Define 1 joule of work.

Answer 1

1. Work is said to be done when the force applied to a body causes a displacement.
2. The SI unit of force is joule.
3. Work done = Force × Displacement.
4. One joule of force is defined as the work done by 1 N of force on displacing a body by 1 m.
5. $$\begin{gathered} Workdone=1N\times 1m \\ =1Nm \\ =1joule. \end{gathered}$$