Joule
A Joule (abbreviated J) is the metric measure of work, named for James Prescott Joule for his work on the relationship between heat, electricity and work. It is defined to be the amount of energy it takes to move an object using a 1N force across a distance of 1m, as . Note that a Joule is equal to a Newton-meter, it is only specifically used to denote work, energy, and heat, as torque has the same dimensions as energy, but it is measured in meters-Newton rather than Joules, as .
See also
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