What is the Joule equal to?
One joule equals the work done (or energy expended) by a force of one newton (N) acting over a distance of one meter (m). One newton equals a force that produces an acceleration of one meter per second (s) per second on a one kilogram (kg) mass. Therefore, one joule equals one newton•meter.
What does JKG mean?
Joule Per Kilogram
What is the 1 Joule of work?
1 J is the amount of work done by a force of 1 N on an object that displaces it through a distance of 1 m in the direction of the applied force.
What is the best definition for Joule?
One joule is defined as the amount of energy exerted when a force of one newton is applied over a displacement of one meter. One joule is the equivalent of one watt of power radiated or dissipated for one second. In some applications, the British thermal unit (Btu) is used to express energy.
What is an example of a joule?
Use the scientific term joule for talking about work, energy, or heat. In physics, it’s common to talk about joules of energy — one example used to illustrate a joule is lifting an apple, which weighs about one Newton. If you raise the apple one meter in the air, you’ve used one joule of work.
Who first introduced the term Joule?
James Prescott Joule
| James Prescott Joule FRS FRSE | |
|---|---|
| Born | 24 December 1818 Salford, Lancashire, England |
| Died | 11 October 1889 (aged 70) Sale, Cheshire, England |
| Citizenship | British |
| Known for | First law of thermodynamics Disproving caloric theory |
Who discovered work done?
Gaspard-Gustave Coriolis
Who named Heat?
James Clerk Maxwell
When was the term Joule first used?
December 1840: Joule’s abstract on converting mechanical power into heat. Calorimeter used by Joule in his 1876 determination of the mechanical equivalent of heat.
What is Joule famous for?
James Prescott Joule studied the nature of heat and established its relationship to mechanical work. He laid the foundation for the theory of conservation of energy, which later influenced the First Law of Thermodynamics. He also formulated the Joule’s law which deals with the transfer of energy.
Is James Joule dead?
Deceased (1818–1889)
How did James Joule discover energy?
James Prescott Joule experimented with engines, electricity and heat throughout his life. Joule’s findings resulted in his development of the mechanical theory of heat and Joule’s law, which quantitatively describes the rate at which heat energy is produced from electric energy by the resistance in a circuit.
What did Joule’s experiment demonstrate?
The experiment that showed most directly the connection between mechanical action and heat involved the stirring of water by a paddle. Joule recognized that, in a container that cannot exchange heat with the surroundings, if a gas is compressed, and then allowed to expand into a vacuum, the expanding gas does no work.
What is the basic unit of energy now called?
Joule
Is Joule’s heating a reversible effect?
Joule ‘s law of heating is not a reversible process, because we can not directly produce electric current by just heating any resistance.
What is heating effect of electric current?
When an electric current passes through a conductor (like a high resistance wire) the conductor becomes hot after some time and produces heat. This is called heating effect of Electric Current. This is because of heating effect of electric current.
What are 3 effects of electric current?
Hence, the three effects of electric current are heating effect, magnetic effect and chemical effect.