Definition, Meaning & Synonyms
joule
Noun
/dʒuːl/
Definition
The joule is a unit of energy in the International System of Units (SI).
Examples
- The energy needed to lift a small apple one meter off the ground is approximately one joule.
- A standard lightbulb uses about 60 joules per second of energy.
Meaning
It measures the amount of energy transferred when one newton of force moves an object one meter in the direction of the force.
Synonyms
- energy unit
- joules per second (watts)
