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Joule
noun
In the International System of Units, the derived unit of energy, work and heat; the work required to exert a force of one newton for a distance of one metre. Also equal to the energy of one watt of power for a duration of one second. Symbol: J
synonyms
Exact(47)
Six metric units the watt, kelvin, farad, newton, joule and gray are named after British scientists.
A force of one newton moving through a distance of one metre does one joule of work.
According to Dirac's relativistic theory, the electron should possess a magnetic moment whose strength he predicted to be exactly one Bohr magneton (eh/4πm, or 9.27 × 10−24 joule per tesla).
This system proposed as units of scientific measurement the metre, kilogram, second, and joule and was endorsed in 1960 by the General Conference of Weights and Measures (with the ampere instead of the joule as the unit of energy).
This can be achieved by coupling radio-frequency waves or microwaves to the plasma particles, by injecting energetic beams of neutral atoms that become ionized and heat the plasma, by magnetically compressing the plasma, or by the ohmic heating (also known as Joule heating) that occurs when an electric current passes through the plasma.
The H-H fusion reaction is also exoergic, with a Q-value of 6.7 × 10−14 joule.
Similar(13)
In fact it is 69 x 1021 joules.
One objection to electric cars is that petrol packs six times more joules of energy into a kilogram than a battery can manage.
And when it does, global warming will resume.Correction: This article originally stated that 69 zettajoules of heat was 69 x 1011 joules.
It takes around 200,000 joules of energy to make a sheet of paper.
In the International System of Units, energy is measured in joules, volume in cubic metres (m3), force in newtons (N), and pressure in pascals (Pa), where 1 Pa = 1 N/m2.
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