Definition

$\textit{Joule}$ is the SI unit of work or energy, defined to be the work done by a force of one newton acting to move an object through a distance of one meter in the direction in which the force is applied. Equivalently, since kinetic energy is one half the mass times the square of the velocity, one joule is the kinetic energy of a mass of two kilograms moving at a velocity of $1 m/s$.

Concept Hierarchy

Broader Concepts 1

Current Concept

Narrower Concepts 49

Attojoule
aJ
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British Thermal Unit (international Definition)
0112/2///62720#UAA114
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British Thermal Unit (thermochemical Definition)
Btu{th}
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International Table Calorie
cal_IT
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Thermochemical Calorie
D35
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Erg
erg
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Electron Volt
A53
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Hartree
Ha
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Exajoule
EJ
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Foot Pound Force
[ft_i].[lbf_av]
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Foot Poundal
N46
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Femtojoule
0112/2///62720#UAB124
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Giga Electron Volt
GeV
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Gigajoule
GJ
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Gigawatt Hour
GWH
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Kilo British Thermal Unit (international Definition)
kBtu{IT}
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Kilo British Thermal Unit (thermochemical Definition)
kBtu{th}
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Kilocalorie
kcal
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Kilo Electron Volt
0112/2///62720#UAA593
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Kilojoule
kJ
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Kilo Volt Ampere Hour
C79
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Kilo Volt Ampere Reactive Hour
kVA{Reactive}·h
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Kilowatt Hour
kW.h
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Mega British Thermal Unit (international Definition)
M[Btu_IT]
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Mega Electron Volt
MeV
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Megajoule
MJ
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Mega Ton of Oil Equivalent
Mtoe
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Mega Volt Ampere Hour
MVA.h
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Mega Volt Ampere Reactive Hour
MAH
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Megawatt Hour
0112/2///62720#UAA225
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Microjoule
μJ
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Millijoule
0112/2///62720#UAA792
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Nanojoule
0112/2///62720#UAB739
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Petajoule
0112/2///62720#UAB123
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Picojoule
pJ
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Planck Energy
Eᵨ
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Quad
quad
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Therm (ec)
thm{EC}
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Therm (u.s.)
0112/2///62720#UAB223
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Thm_eec
100000.[Btu_IT]
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Therm Us
100000.[Btu_59]
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Ton of Oil Equivalent
toe
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Terajoule
TJ
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Terawatt Hour
TW.h
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Ton Energy
Gcal
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Volt Ampere Hour
VA·h
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Volt Ampere Reactive Hour
VA{reactive}.h
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Watt Hour
W.h
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Watt Second
W·s
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Concept Information

IRI

https://vocab.sentier.dev/units/unit/J

Notation

0112/2///62720#UAA172

Status

Accepted