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The joule is the derived unit of energy in the International System of Units. It is defined as: : One joule is the amount of energy required to perform the following actions: * The work done by a force of one newton traveling through a distance of one meter; * The work required to move an electric charge of one coulomb through an electrical potential difference of one volt; or one coulomb volt, with the symbol C·V; * The work done to produce power of one watt continuously for one second; or one watt second (compare kilowatt hour), with the symbol W·s. Thus a kilowatt hour is 3,600,000 joules or 3.6 megajoules; * The kinetic energy of a 2 kg mass moving at a velocity of 1 m/s. The energy is linear in the mass but quadratic in the velocity, being given by E = ½mv²; (Source: http://en.wikipedia.org/wiki/Joule/ )

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Q: In physical science what does the term joules mean?
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