Erg

The unit of work or energy in the C G S system being the amount of work done by a dyne working through a distance of one centimeter the amount of energy expended in moving a body one centimeter against a force of one dyne 981 dynes exert the same force as a one gram mass in the earths gravitational field One foot pound is equal to 13560000 ergs The absolute Joule is equivalent to 107 ergs which are equivalent to 02389 gram calories at 15deg C See also mechanical equivalent of heat under equivalent