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The joule (pronounced / ˈ dʒ uː l /, JOOL or / ˈ dʒ aʊ l / JOWL; symbol: J) is the unit of energy in the International System of Units (SI). It is equal to the amount of work done when a force of one newton displaces a mass through a distance of one metre in the direction of that force.
James Prescott Joule FRS FRSE (/ dʒ uː l /; 24 December 1818 – 11 October 1889) was an English physicist, mathematician and brewer, born in Salford, Lancashire. Joule studied the nature of heat, and discovered its relationship to mechanical work.
A joule refers to the amount of energy transferred to an object when a force of 1 newton is applied on it over a distance of 1 metre (1J = 1N × 1m). It is related to the watt (a unit of power ): one watt equals one joule per second.
Energy is defined via work, so the SI unit of energy is the same as the unit of work – the joule (J), named in honour of James Prescott Joule and his experiments on the mechanical equivalent of heat.
Joule ist im Internationalen Einheitensystem die Maßeinheit der Energie. Sie wird für alle Energieformen verwendet, also auch für die Arbeit und Wärmemenge. Benannt ist sie nach dem Physiker James Prescott Joule.
The joule is named after James Prescott Joule. As with every SI unit named for a person, its symbol starts with an upper case letter (J), but when written in full, it follows the rules for capitalisation of a common noun; i.e., joule becomes capitalised at the beginning of a sentence and in titles but is otherwise in lower case. See also.
James Prescott Joule, English physicist who established that the various forms of energy, such as electrical and heat, are basically the same and can be changed one into another. Thus, he formed the basis of conservation of energy, the first law of thermodynamics.
joule, unit of work or energy in the International System of Units (SI); it is equal to the work done by a force of one newton acting through one metre. Named in honour of the English physicist James Prescott Joule, it equals 10 7 ergs, or approximately 0.7377 foot-pounds.
May 11, 2018 · joule (symbol J) SI unit of energy. One joule is the work done by a force of one newton acting over a distance of one metre. It was named after James P. Joule and replaced the erg.
James Prescott Joule (24 December 1818 – 11 October 1889) was an English physicist, born in Salford, near Manchester. In his time he had great contribution to the world of electricity and thermodynamics.
A joule is the SI base unit for energy. It is equal to [math]1 \frac{kg\cdot m^2}{s^2}[/math] . [1] In physical terms, lifting an apple one meter takes 1 joule of energy.
Mar 7, 2019 · The joule (symbol: J) is the basic SI unit of energy. A joule is equal to the kinetic energy of a kilogram mass moving at the speed of one meter per second (one joule is a kg⋅m 2 ⋅s −2).
Joule–Thomson effect. In thermodynamics, the Joule–Thomson effect (also known as the Joule–Kelvin effect or Kelvin–Joule effect) describes the temperature change of a real gas or liquid (as differentiated from an ideal gas) when it is forced by a pressure difference through a valve or porous plug while keeping it insulated so that no ...
Joule heating affects the whole electric conductor, unlike the Peltier effect which transfers heat from one electrical junction to another. Joule-heating or resistive-heating is used in multiple devices and industrial process. The part that converts electricity into heat is called a heating element. Among the many practical uses are:
Dec 6, 2015 · James Prescott Joule was born in Salford, Lancashire, England on 24 December, 1818. While young, Joule was mostly home-schooled but also studied Geometry and Arithmetic under John Dalton, an English chemist, physicist, and meteorologist who laid the framework for modern atomic theory.
Le joule (de symbole J) est une unité dérivée du Système international (SI) pour quantifier l' énergie, le travail et la quantité de chaleur.
The SI derived unit used to measure energy or work. One joule is equal to the energy used to accelerate a body with a mass of one kilogram using one newton of force over a distance of one meter. One joule is also equivalent to one watt-second.
A joule a munka, a hőmennyiség és az energia – mint fizikai mennyiségek – mértékegysége az SI rendszerben. Jele: J. [1] Egy joule munkát végez az egy newton nagyságú erő a vele egyirányú egy méter hosszúságú elmozdulás közben.
Joule (disambiguation) Look up joule or joules in Wiktionary, the free dictionary. The joule (symbol: J) is the SI derived unit of energy. Joule or joules may also refer to:
Um joule compreende a quantidade de energia correspondente à aplicação de uma força de um newton durante um percurso de um metro. Ou seja, é a energia que acelera uma massa de 1 kg a 1 m/s² num espaço de 1 m. [1] Essa mesma quantidade poderia ser dita como um newton metro.
Joule heating, in electricity, the conversion of electric energy into heat energy by the resistance in a circuit. The English physicist James Prescott Joule discovered in 1840 that the amount of heat per second that develops in a wire carrying a current is proportional to the electrical resistance.
Un joule este egal cu lucrul mecanic efectuat de o forță de un newton care își deplasează punctul de aplicație pe o distanță de un metru pe direcția și în sensul forței.
Joule (v češtině nejčastěji [džaul] či [džoul] nebo [džúl] ) je jednotka práce a energie, jeho značka je J. V soustavě SI patří joule mezi odvozené jednotky , ze základních jednotek SI je odvozen vztahem:
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