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An erg is the unit of energy and mechanical work in the centimetre-gram-second (CGS) system of units, symbol 'erg'. Its name is derived from the Greek ergon, meaning 'work'. An erg is the amount of work done by a force of one dyne exerted for a distance of one centimeter. In the CGS base units, it is equal to one gram centimeter-squared per second-squared (\(g \cdot cm^2/s^2\)). It is thus equal to \(10^{-7}\) joules or 100 nanojoules in SI units. \(1 erg = 10^{-7} J = 100 nJ\), \(1 erg = 624.15 GeV = 6.2415 \times 10^{11} eV\), \(1 erg = 1 dyne\cdot cm = 1 g \cdot cm^2/s^2\). |
