Erg. Unit of measurement of energy or work , belonging to the Cegesimal System of Units ( CGS ), its symbol is erg.
Summary
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- 1 Origin
- 2 Definition
- 3 Formulation
- 4 Equivalence
- 5 Multiples and submultiples
- 6 Note on terminology
- 7 See also
- 8 Reference
- 9 Source
Origin
Erg is also known as erg. This name is considered to have its origin in the prefix derived from the Greek ergon, which means work and enters the composition of scientific voices. Primarily used in the United States of America , it is considered an outdated unit of measurement.
Definition
Unit of energy of the CGS system that is equivalent to the energy transmitted to a body when a force of one dyne is applied to it and it is displaced one centimeter in the direction of force 1 , in the International System of Units (SI), the unit is the joule .
Formulation
1 erg = 1 din x 1 cm
Equivalence
In other energy units 1 erg corresponds to:
| Unit of measurement | Symbol | Equivalence |
| joule | J | 10 -7 J |
| electron volt | eV | 6.242 x 10 11 eV |
| calorie | lime | 2,390 x 10 -8 cal |
| kilowatt hour | kW.h | 2,778 x 10 -14 kW.h |
| pound foot | ft lb | 7,376 x 10 -8 ft lb |
| steam horse hour | hp.h | 3,725 x 10 -14 hp.h |
| british thermal unit | btu | 9.484 x 10 -11 |
Multiples and submultiples
| Value | Symbol | Name |
| 10 -9 erg | nerg | nanoergio |
| 10 -6 erg | µerg | microergium |
| 10 -3 erg | merg | miliergio |
| 10 3 erg | kerg | kiloerg |
| 10 6 erg | Merg | megaerg |
| 10 9 erg | Gerg | giganergy |
Terminology Note
This unit belonging to the Cegesimal System of Units known by the acronym CGS ( centimeter , gram , second) does not come from a person’s own name, so the letters of the symbol are written with lowercase (erg), their name always begins with a lowercase letter (erg), except if you start a phrase or a title.
