Concept information
Preferred term
0112/2///62720#UAA172Joule
Definition
- $\ extit{Joule}$ 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 $1 m/s$.
Broader concept
Narrower concepts
- A13 Attojoule (en)
- BTU British Thermal Unit (International Definition) (en)
- [Btu_th] British Thermal Unit (Thermochemical Definition) (en)
- A53 Electron Volt (en)
- A57 Erg (en)
- A68 Exajoule (en)
- A70 Femtojoule (en)
- N46 Foot Poundal (en)
- 85 Foot Pound Force (en)
- A85 Giga Electron Volt (en)
- GV Gigajoule (en)
- GWH Gigawatt Hour (en)
- Ha Hartree (en)
- D70 International Table calorie (en)
- k[Btu_IT] Kilo British Thermal Unit (International Definition) (en)
- k[Btu_th] Kilo British Thermal Unit (Thermochemical Definition) (en)
- K53 Kilocalorie (en)
- B29 Kilo Electron Volt (en)
- KJO Kilojoule (en)
- C79 Kilovolt Ampere Hour (en)
- K3 Kilovolt Ampere Reactive Hour (en)
- KWH Kilowatthour (en)
- B71 Mega Electron Volt (en)
- 3B Megajoule (en)
- Mtoe Megaton of Oil Equivalent (en)
- MV.A.h Megavolt Ampere Hour (en)
- MAH Megavolt Ampere Reactive Hour (en)
- MWH Megawatt Hour (en)
- μJ Mikrojoule
- C15 Millijoule (en)
- nJ nanojoule (en)
- C68 Petajoule (en)
- pJ picojoule (en)
- Eᵨ Planck Energy (en)
- N70 Quad (en)
- D30 Terajoule (en)
- D32 Terawatt Hour (en)
- N71 therm (EC) (en)
- D35 Thermochemical Calorie (en)
- N72 therm (U.S.) (en)
- 100000.[Btu_59] Therm US (en)
- 100000.[Btu_IT] THM_EEC (en)
- Gcal Ton Energy (en)
- toe Ton of Oil Equivalent (en)
- V.A.h Volt Ampere Hour (en)
- V.A{reactive}.h Volt Ampere Reactive Hour (en)
- WHR Watthour (en)
- J55 Watt Second (en)
Note
- 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. This is the same as 107 ergs in the CGS system, or approximately 0.737 562 foot-pound in the traditional English system. In other energy units, one joule equals about 9.478 170 x 10-4 Btu, 0.238 846 (small) calories, or 2.777 778 x 10-4 watt hour. The joule is named for the British physicist James Prescott Joule (1818-1889), who demonstrated the equivalence of mechanical and thermal energy in a famous experiment in 1843.
Notation
- 0112/2///62720#UAA172
- J
- JOU
In other languages
URI
https://vocab.sentier.dev/units/unit/J
{{label}}
{{#each values }} {{! loop through ConceptPropertyValue objects }}
{{#if prefLabel }}
{{/if}}
{{/each}}
{{#if notation }}{{ notation }} {{/if}}{{ prefLabel }}
{{#ifDifferentLabelLang lang }} ({{ lang }}){{/ifDifferentLabelLang}}
{{#if vocabName }}
{{ vocabName }}
{{/if}}