Joule
E868103
Joule is the SI unit of energy, named after the English physicist James Prescott Joule for his work on the mechanical equivalent of heat.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| joule | 2 |
Statements (52)
| Predicate | Object |
|---|---|
| instanceOf |
SI derived unit
ⓘ
unit of energy ⓘ |
| appearsIn | SI Brochure ⓘ |
| coherentWithSI | true ⓘ |
| conversionToBTU | 1 J ≈ 9.4782×10^-4 BTU ⓘ |
| conversionToCalorie | 1 J ≈ 0.239 cal ⓘ |
| conversionToFootPound | 1 J ≈ 0.737562 ft·lbf ⓘ |
| conversionToKilowattHour | 1 J = 2.7777778×10^-7 kWh ⓘ |
| definedAs | the work done when a force of one newton displaces an object by one metre in the direction of the force ⓘ |
| dimension | M L^2 T^-2 ⓘ |
| equivalentTo |
0.239005736 calorie (thermochemical)
ⓘ
1×10^7 erg ⓘ 6.241509074e18 electronvolt (approximately) ⓘ coulomb volt ⓘ newton metre ⓘ pascal cubic metre ⓘ watt second ⓘ |
| hasMultiple |
gigajoule
ⓘ
kilojoule ⓘ megajoule ⓘ |
| hasSubmultiple |
microjoule
ⓘ
millijoule ⓘ nanojoule ⓘ |
| inSIBaseUnits | kilogram metre squared per second squared ⓘ |
| isStandardUnitFor |
energy in SI
ⓘ
heat in SI ⓘ work in SI ⓘ |
| namedAfter | James Prescott Joule NERFINISHED ⓘ |
| namedBy | International System of Units NERFINISHED ⓘ |
| partOf | International System of Units NERFINISHED ⓘ |
| quantityMeasured |
energy
ⓘ
heat ⓘ work ⓘ |
| relatedToConcept | mechanical equivalent of heat ⓘ |
| relatedUnit |
calorie
ⓘ
electronvolt ⓘ newton ⓘ watt ⓘ |
| SIBaseUnitExpression | kg·m^2·s^-2 ⓘ |
| status | accepted SI derived unit ⓘ |
| symbol | J ⓘ |
| usedIn |
electromagnetism
ⓘ
engineering ⓘ mechanics ⓘ quantum physics ⓘ thermodynamics ⓘ |
| usedToMeasure |
chemical energy
ⓘ
electrical energy ⓘ kinetic energy ⓘ potential energy ⓘ radiant energy ⓘ thermal energy ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
joule
this entity surface form:
joule