- joule, J, watt second - a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second
--1 is a kind of work unit, heat unit, energy unit
--1 has parts: erg - Joule, James Prescott Joule - English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889)
--2 is a kind of physicist