+The **joule** (J) is the [SI unit](/wiki/si-unit) of [energy](/wiki/energy) and [work](/wiki/work). It represents the energy transferred when a force of one newton acts over a distance of one metre. This fundamental unit is crucial for understanding transfers of heat and mechanical power.
+## See also
+- [Watt](/wiki/watt)
+- [Calorie](/wiki/calorie)
+- [Newton](/wiki/newton)
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