\begin{definition}[Definition:Joule (Unit)]
The '''joule''' is the SI unit of energy.
It is defined as being:
:the '''energy''' transferred to (or work done on) a body when a force of $1$ newton acts on that body in the direction of the force's motion through a distance of one metre
:the '''energy''' dissipated as heat when an electric current of one ampere passes through a resistance of one ohm for one second.
\end{definition}