noun
- a unit of energy or work in the metric system, equal to the work done by a force of one newton acting through a distance of one meter
Usage: physics; scientific
Examples
- The battery stores 3,600 joules of energy.
- One joule equals the energy needed to lift a small apple one meter high.
- The physicist calculated that the collision released millions of joules.
- Food energy is often measured in joules rather than calories in scientific contexts.
- The solar panel can generate 50 joules per second under optimal conditions.
- A typical lightning bolt contains about one billion joules of energy.