Units of energy

Common card · No. 267537

Energy is defined via work, so the SI unit of energy is the same as the unit of work – the joule (J), named in honour of James Prescott Joule and his experiments on the mechanical equivalent of heat. In slightly more fundamental terms, 1 joule is equal to 1 newton metre and, in terms of SI base units 1 J = 1 k g ( m s ) 2 = 1 k g ⋅ m 2...