{"id":45939,"date":"2019-10-20T12:09:16","date_gmt":"2019-10-20T11:09:16","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/quest-ce-que-joule-unite-j-unite-denergie-definition\/"},"modified":"2020-02-26T13:24:11","modified_gmt":"2020-02-26T12:24:11","slug":"quest-ce-que-joule-unite-j-unite-denergie-definition","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-joule-unite-j-unite-denergie-definition\/","title":{"rendered":"Qu&#8217;est-ce que Joule (unit\u00e9 J) &#8211; Unit\u00e9 d&#8217;\u00e9nergie &#8211; D\u00e9finition"},"content":{"rendered":"<div class=\"su-quote su-quote-style-default\">\n<div class=\"su-quote-inner su-clearfix\">Joule est une unit\u00e9 d&#8217;\u00e9nergie d\u00e9riv\u00e9e.\u00a0Il est \u00e9gal \u00e0 l&#8217;\u00e9nergie transf\u00e9r\u00e9e \u00e0 un objet lorsqu&#8217;une force d&#8217;un newton agit sur cet objet dans la direction de son mouvement sur une distance d&#8217;un m\u00e8tre.\u00a0G\u00e9nie thermique<\/div>\n<\/div>\n<div class=\"su-divider su-divider-style-dotted\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2>Unit\u00e9s d&#8217;\u00e9nergie<\/h2>\n<p><strong>L&#8217;\u00e9nergie<\/strong>\u00a0est g\u00e9n\u00e9ralement d\u00e9finie comme le potentiel de travail ou de production de chaleur.\u00a0Cette d\u00e9finition fait que l&#8217;unit\u00e9 SI pour l&#8217;\u00e9nergie est la m\u00eame que l&#8217;unit\u00e9 de travail &#8211; le\u00a0<strong>joule (J)<\/strong>\u00a0.\u00a0Joule est une unit\u00e9 d&#8217;\u00e9nergie d\u00e9riv\u00e9e qui porte le nom de\u00a0<strong>James Prescott Joule<\/strong>\u00a0et de ses exp\u00e9riences sur l&#8217;\u00e9quivalent m\u00e9canique de la chaleur.\u00a0En termes plus fondamentaux, 1 joule est \u00e9gal \u00e0:<\/p>\n<p><strong>1 J = 1 kg.m\u00a0<sup>2<\/sup>\u00a0\/ s\u00a0<sup>2<\/sup><\/strong><\/p>\n<p>\u00c9tant donn\u00e9 que l\u2019\u00e9nergie est une quantit\u00e9 physique fondamentale et qu\u2019elle est utilis\u00e9e dans diverses branches de la physique et de l\u2019ing\u00e9nierie, il existe de nombreuses\u00a0<strong>unit\u00e9s d\u2019\u00e9nergie<\/strong>\u00a0en physique et en ing\u00e9nierie.<\/p>\n<ul>\n<li><a title=\"Joule (unit\u00e9 J) - Unit\u00e9 d'\u00e9nergie\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/joule-unit-j-energy-unit\/\">Joule (unit\u00e9: J)<\/a><\/li>\n<li><a title=\"Calorie (unit\u00e9 cal) - Unit\u00e9 d'\u00e9nergie\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/calorie-unit-cal-energy-unit\/\">Calorie (unit\u00e9: cal)<\/a><\/li>\n<li><a title=\"Unit\u00e9 thermique britannique (unit\u00e9 BTU) - Unit\u00e9 d'\u00e9nergie\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/british-thermal-unit-unit-btu-energy-unit\/\">Unit\u00e9 thermique Britich (unit\u00e9: BTU)<\/a><\/li>\n<li><a title=\"Force \u00e0 la fourche (unit\u00e9 ft.lbf) - Unit\u00e9 d'\u00e9nergie\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/foot-pound-force-unit-ft-lbf-energy-unit\/\">Pied-force (unit\u00e9: ft.lbf)<\/a><\/li>\n<li><a title=\"Kilowattheure (unit\u00e9 kWh) - Unit\u00e9 d'\u00e9nergie\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/kilowatt-hour-unit-kwh-energy-unit\/\">Kilowattheure (unit\u00e9: kWh)<\/a><\/li>\n<li><a title=\"M\u00e9gawatt-jour (unit\u00e9 MWd) - Unit\u00e9 d'\u00e9nergie\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/megawatt-day-unit-mwd-energy-unit\/\">M\u00e9gawatt-jour (unit\u00e9: MWd)<\/a><\/li>\n<li><a title=\"Electronvolt (unit\u00e9 eV) - Unit\u00e9 d'\u00e9nergie\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/thermodynamics\/what-is-energy-physics\/electronvolt-unit-ev-energy-unit\/\">Electronvolt (unit\u00e9: eV)<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<h2><span>Joule &#8211; Unit\u00e9s d&#8217;\u00e9nergie<\/span><\/h2>\n<p><span>Joule (unit\u00e9: J).\u00a0Joule est une unit\u00e9 d&#8217;\u00e9nergie d\u00e9riv\u00e9e.\u00a0Elle est \u00e9gale \u00e0 l&#8217;\u00e9nergie transf\u00e9r\u00e9e \u00e0 un objet lorsqu&#8217;une force d&#8217;un newton agit sur cet objet dans le sens de son mouvement sur une distance d&#8217;un m\u00e8tre.<\/span><\/p>\n<ul>\n<li><strong><span>1 joule = 0,239 calories<\/span><\/strong><\/li>\n<li><strong><span>1 joule = 9,48 x 10\u00a0<\/span><sup><span>-4<\/span><\/sup><span>\u00a0BTU<\/span><\/strong><\/li>\n<li><strong><span>1 joule = 2,778 x 10\u00a0<\/span><sup><span>-7<\/span><\/sup><span>\u00a0kWh<\/span><\/strong><\/li>\n<\/ul>\n<p><a href=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/conversion-joule-calorie-kilowatthour-energy-units.png\"><img loading=\"lazy\" class=\"aligncenter size-large wp-image-16545 lazy-loaded\" src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/conversion-joule-calorie-kilowatthour-energy-units-1024x291.png\" alt=\"conversion - joule, calorie, kilowattheure - unit\u00e9s d'\u00e9nergie\" width=\"669\" height=\"190\" data-lazy-type=\"image\" data-src=\"https:\/\/thermal-engineering.org\/wp-content\/uploads\/2019\/05\/conversion-joule-calorie-kilowatthour-energy-units-1024x291.png\" \/><\/a><\/p>\n<\/div>\n<\/div>\n<div class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights  lgc-first lgc-last\">\n<div class=\"inside-grid-column\">\n<div class=\"su-spacer\"><\/div>\n<h2><span>Exemples d&#8217;\u00e9nergie de 1 joule<\/span><\/h2>\n<p><strong><span>Un joule<\/span><\/strong><span>\u00a0dans la vie quotidienne et dans la science correspond \u00e0 peu pr\u00e8s:<\/span><\/p>\n<ul>\n<li><span>L&#8217;\u00e9nergie cin\u00e9tique d&#8217;un objet de masse\u00a0<\/span><strong><span>1 kg se<\/span><\/strong><span>\u00a0d\u00e9pla\u00e7ant \u00e0 \u221a2 \u2248\u00a0<\/span><strong><span>1,4 m \/ s<\/span><\/strong><span>\u00a0.<\/span><\/li>\n<li><span>L&#8217;\u00e9nergie cin\u00e9tique d&#8217;un\u00a0objet de\u00a0<\/span><strong><span>50 kg<\/span><\/strong><span>\u00a0(par exemple humain) se d\u00e9pla\u00e7ant tr\u00e8s lentement &#8211; environ\u00a0<\/span><strong><span>0,72 km \/ h<\/span><\/strong><span>\u00a0.<\/span><\/li>\n<li><span>L&#8217;\u00e9nergie n\u00e9cessaire pour soulever une pomme de taille moyenne (\u00a0<\/span><strong><span>100 g<\/span><\/strong><span>\u00a0) \u00e0\u00a0<\/span><strong><span>1 m\u00e8tre verticalement<\/span><\/strong><span>\u00a0de la surface de la Terre.<\/span><\/li>\n<li><span>La chaleur n\u00e9cessaire pour \u00e9lever la temp\u00e9rature de\u00a0<\/span><strong><span>1 g d&#8217;\u00a0<\/span><a title=\"Propri\u00e9t\u00e9s de l'eau\" href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-nuclear-engineering\/properties-of-water\/\"><span>eau<\/span><\/a><span>\u00a0de 0,24 \u00b0 C<\/span><\/strong><span>\u00a0.<\/span><\/li>\n<li><span>La chaleur n\u00e9cessaire pour\u00a0<\/span><strong><span>\u00e9vaporer<\/span><\/strong><span>\u00a0de\u00a0<\/span><strong><span>0,00044 g d&#8217;eau liquide<\/span><\/strong><span>\u00a0\u00e0 100 \u00b0 C.<\/span><\/li>\n<li><span>La quantit\u00e9 d&#8217;\u00e9lectricit\u00e9 requise pour allumer une\u00a0<\/span><strong><span>LED<\/span><\/strong><span>\u00a0de\u00a0<\/span><strong><span>1\u00a0<\/span><\/strong><span><strong>watt<\/strong>\u00a0pendant\u00a0<strong>1 s<\/strong>\u00a0.<\/span><\/li>\n<li><span>Est lib\u00e9r\u00e9 par environ\u00a0<\/span><strong><span>3,1\u00a0<\/span><\/strong><strong><span>\u22c5\u00a0<\/span><\/strong><strong><span>10\u00a0<\/span><\/strong><strong><sup><span>10<\/span><\/sup><\/strong><strong><span>\u00a0fissions<\/span><\/strong><span>\u00a0dans un r\u00e9acteur nucl\u00e9aire.<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<p>&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;&#8230;.<\/p>\n<p>Cet article est bas\u00e9 sur la traduction automatique de l&#8217;article original en anglais. Pour plus d&#8217;informations, voir l&#8217;article en anglais. Pouvez vous nous aider Si vous souhaitez corriger la traduction, envoyez-la \u00e0 l&#8217;adresse: translations@nuclear-power.com ou remplissez le formulaire de traduction en ligne. Nous appr\u00e9cions votre aide, nous mettrons \u00e0 jour la traduction le plus rapidement possible. Merci<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Joule est une unit\u00e9 d&#8217;\u00e9nergie d\u00e9riv\u00e9e.\u00a0Il est \u00e9gal \u00e0 l&#8217;\u00e9nergie transf\u00e9r\u00e9e \u00e0 un objet lorsqu&#8217;une force d&#8217;un newton agit sur cet objet dans la direction de son mouvement sur une distance d&#8217;un m\u00e8tre.\u00a0G\u00e9nie thermique Unit\u00e9s d&#8217;\u00e9nergie L&#8217;\u00e9nergie\u00a0est g\u00e9n\u00e9ralement d\u00e9finie comme le potentiel de travail ou de production de chaleur.\u00a0Cette d\u00e9finition fait que l&#8217;unit\u00e9 SI pour &#8230; <a title=\"Qu&#8217;est-ce que Joule (unit\u00e9 J) &#8211; Unit\u00e9 d&#8217;\u00e9nergie &#8211; D\u00e9finition\" class=\"read-more\" href=\"https:\/\/www.thermal-engineering.org\/fr\/quest-ce-que-joule-unite-j-unite-denergie-definition\/\" aria-label=\"En savoir plus sur Qu&#8217;est-ce que Joule (unit\u00e9 J) &#8211; Unit\u00e9 d&#8217;\u00e9nergie &#8211; D\u00e9finition\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce que Joule (unit\u00e9 J) - Unit\u00e9 d&#039;\u00e9nergie - D\u00e9finition<\/title>\n<meta name=\"description\" content=\"Joule est une unit\u00e9 d&#039;\u00e9nergie d\u00e9riv\u00e9e. 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