# joule

(redirected from Joules)
Also found in: Dictionary, Thesaurus, Medical.

## joule

(jo͞ol, joul), abbr. J, unit of workwork,
in physics and mechanics, transfer of energy by a force acting to displace a body. Work is equal to the product of the force and the distance through which it produces movement.
or energyenergy,
in physics, the ability or capacity to do work or to produce change. Forms of energy include heat, light, sound, electricity, and chemical energy. Energy and work are measured in the same units—foot-pounds, joules, ergs, or some other, depending on the system of
in the mks systemmks system,
system of units of measurement based on the metric system and having the meter of length, the kilogram of mass, and the second of time as its fundamental units. Other mks units include the newton of force, the joule of work or energy, and the watt of power.
of units, which is based on the metric systemmetric system,
system of weights and measures planned in France and adopted there in 1799; it has since been adopted by most of the technologically developed countries of the world.
; it is the work done or energy expended by a force of 1 newton acting through a distance of 1 meter. The joule is named for James P. Joule.

## joule

(jool) Symbol: J. The SI unit of energy, equal to the work done when the point of application of a force of one newton is moved one meter in the direction of the force.

## Joule

a unit of energy and work in the International System of Units and the MKSA (meter-kilogram-second-ampere) system. It is equal to the work done by a force of 1 newton in moving a body 1 m in the direction of the force. It is named in honor of the English physicist J. Joule. In Russian the symbol is dzh; the international symbol is J.

At the Second World Conference of Electrical Engineers (1889) the joule was introduced into the absolute practical electrical units as the unit of work and energy for electric current. The joule was defined as the work done at a power of 1 watt in 1 second. The International Conference on Electrical Units and Standards (London, 1908) established “international” electrical units, among them the so-called international joule. After the return to absolute electrical units (beginning Jan. 1, 1948), the ratio of 1 international joule to 1.00020 absolute joules was adopted.

The joule is also used as a unit of quantity of heat. The ratio of the joule to other units is as follows: 1 joule = 107 ergs = 0.2388 calories.

G. D. BURDUN

## joule

[jül or jau̇l]
(mechanics)
The unit of energy or work in the meter-kilogram-second system of units, equal to the work done by a force of 1 newton magnitude when the point at which the force is applied is displaced 1 meter in the direction of the force. Symbolized J. Also known as newton-meter of energy.

## joule

A unit of energy or work; equals the work done by a force of 1 newton which acts over a distance of 1 metre in the direction of the force.

## joule

the derived SI unit of work or energy; the work done when the point of application of a force of 1 newton is displaced through a distance of 1 metre in the direction of the force. 1 joule is equivalent to 1 watt-second, 107 ergs, 0.2390 calories, or 0.738 foot-pound

## Joule

James Prescott. 1818--89, English physicist, who evaluated the mechanical equivalent of heat and contributed to the study of heat and electricity

## joule

A unit of energy in the MKS system. It is equal to 10,000,000 ergs in the CGS system. Surge protectors are often given joule ratings, but this refers only to the amount of energy they can absorb, not what gets through. See CGS system.
References in periodicals archive ?
The Joules RTL Power Solution delivers RTL power analysis with system-level runtimes and capacity while still providing high-quality estimates of gates and wires.
Midlands based brand Joules has ambitious growth plans following a PS22 >million investment from LDC
Nor, considering the book's subject matter and context, is it surprising that Olivia Joules frequently flirts with questionable taste: When an Osama bin Laden look-alike is described as a "compelling mixture of soulful and powerful" with "finely drawn features, a straight nose, fine, arched brows, hooded brown eyes," and an "aristocratic" and "languid" bearing, you may find yourself swooning for all the wrong reasons.
Her new heroine Olivia Joules is,in fact,everything Bridget Jones is not: glamorous,confident and clued-up -almost.
Olivia Joules and the Overactive Imagination' is released on 7 November 2003 by Picador priced GBP12.
Jude Medical products in what now are the smallest available devices that continue to maintain a clinically important 30+ Joule delivered energy level.
Expected to be the world's largest laser, it will hurl a mighty bolt of nearly 2 million joules of energy at a fuel capsule.
What is required is a few joules J from somewhere, these might come from a mass transfer, heat transfer or work exchange noted earlier (how about a match?
Soon everyone will be using a unit called joules to measure all forms of energy.
Patients received either 150 joules for all shocks or 200 joules for the first shock, 300 joules for the second, and 360 joules for remaining shocks as required.
UPMARKET clothing brand Joules has brushed aside a "challenging" retail market to cheer an 18% surge in half-year sales as the brand expanded further in the UK and overseas.
FASHION brand Joules has opened its first store in North Wales.

Site: Follow: Share:
Open / Close