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Joule
The joule (J) is the unit of energy.
Explanation
A joule is defined as the energy required to move a body with a force of 1 newton over a distance of 1 meter. The mass of that body is not important. There is
where
N Newton m Meter kg Kilogram s Second W Watt
Expressed in the units joule (J), newton (N), meter (m), kilogram (kg), second (s) and watt (W). Thus, a joule is a watt second.
HistoryThe name joule is a tribute to English physicist James Prescott Joule (1818 - 1889). |