The erg is a unit of energy equal to 10−7joules (100nJ). It is not an SI unit, instead originating from the centimetre–gram–second system of units (CGS). Its name is derived from (), a Greek word meaning 'work' or 'task'.
Key facts
- Unit.name
- erg
- Unit.standard
- CGS units
- Unit.quantity
- energy
- Unit.symbol
- erg
- Unit.extralabel
- Derivation
- Unit.extradata
- 1 erg = 1 dyn⋅cm
- Unit.units1
- CGS base units
- Unit.inunits1
- 1 cm2⋅g⋅s−2
- Unit.units2
- SI units
- Unit.units3
- British Gravitational System
via Wikipedia infobox
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Encyclopedic overview
3 sectionsContents
- History
- See also
- References
The erg is a unit of energy equal to 10−7joules (100nJ). It is not an SI unit, instead originating from the centimetre–gram–second system of units (CGS). Its name is derived from (), a Greek word meaning 'work' or 'task'.
An erg is the amount of work done by a force of one dyne exerted for a distance of one centimetre. In the CGS base units, it is equal to one gram centimetre-squared per second-squared (g⋅cm2/s2). It is thus equal to 10−7 joules or 100 nanojoules (nJ) in SI units. 1 erg = = 1 erg = = = 1 erg = = 1 erg = = 1 erg =
Excerpted from Wikipedia’s “erg” article, available under the CC BY-SA 4.0 licence.