Joule

<p>The joule  is the unit of <a href="/facts/Energy/wd8PrQM7">energy</a> in the <a href="/facts/International_System_of_Units/S7YLglNz">International System of Units</a> (SI). In terms of <a href="/facts/SI_base_units/M7PsTWg4">SI base units</a>, one joule corresponds to one <a href="/facts/Kilogram/lU2zbPk8">kilogram</a>-<a href="/facts/Metre/hPhzc1CV">metre squared</a> per <a href="/facts/Second/jtFxnJXx">second squared</a> (1 J = 1 kg⋅m2⋅s−2). One joule is equal to the amount of <a href="/facts/Work_(physics)/mbclFPBs">work</a> done when a force of one <a href="/facts/Newton_(unit)/Ral9XgNl">newton</a> displaces a <a href="/facts/Body_(physics)/WhqjK6xo">body</a> through a distance of one <a href="/facts/Metre/hPhzc1CV">metre</a> in the direction of that force. It is also the energy dissipated as heat when an <a href="/facts/Electric_current/Dc1xdnUX">electric current</a> of one <a href="/facts/Ampere/rcKdfC2R">ampere</a> passes through a <a href="/facts/Electrical_resistance_and_conductance/hxSt0UAj">resistance</a> of one <a href="/facts/Ohm/QNVrlGjw">ohm</a> for one second. It is named after the English physicist <a href="/facts/James_Prescott_Joule/uzfj0eSG">James Prescott Joule</a> (1818–1889).
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Joule open-in-new

Joule