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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.
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May 22, 2019 · Joule is a derived unit of energy that is equal to the energy transferred to an object when a force of one newton acts on it in one metre. It is named after James Prescott Joule and his experiments on the mechanical equivalent of heat. Learn more about its definition, examples, and references from this web page.
Mar 7, 2019 · A joule is the basic SI unit of energy, equal to the kinetic energy of a kilogram mass moving at one meter per second or the work done on an object by a force of one newton. Learn the origin, examples and sources of the joule, named for James Prescott Joule.
- Anne Marie Helmenstine, Ph.D.
Mar 18, 2024 · Joule is the SI unit of work or energy, equal to the work done by a force of one newton acting through one metre. Learn how joule is related to other units of energy, such as calorie, erg, and watt-second, and see examples of joule conversions.
- The Editors of Encyclopaedia Britannica
In slightly more fundamental terms, 1 joule is equal to 1 newton metre and, in terms of SI base units. An energy unit that is used in atomic physics, particle physics and high energy physics is the electronvolt (eV). One eV is equivalent to 1.602 176 634 × 10−19 J. [2]
A joule ( / ˈdʒaʊl / or sometimes / ˈdʒuːl /) is a unit in the SI system. It measures energy; usually in scientific or electrical appliances . It is named after James Prescott Joule. 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).
The joule (pronounced / ˈdʒuːl /, JOOL or / ˈdʒaʊl / 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.