| 单词 | joule |
| 释义 | joule (dʒuːl) Word forms: plural joules countable noun In physics, a joule is a unit of energy or work. [technical]Joule in British English (dʒuːl) noun James Prescott. 1818–89, English physicist, who evaluated the mechanical equivalent of heat and contributed to the study of heat and electricity joule in British English (dʒuːl) noun 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 Symbol: J Word origin C19: named after James Prescott JouleJoule in American English (dʒul) James Prescott1818-89; Eng. physicist joule in American English (dʒul; occas. dʒaʊl) noun Physics the basic unit of energy or work in the SI, MKS systems, equal to the amount of work done by a force of one newton acting through a distance of one meter abbrev. J Word origin after Joulejoule in Electrical Engineering (dʒul) or J Word forms: (regular plural) joules noun Word originsThis word is named for the English physicist James Prescott Joule (1818-1889) who established the theory of the first law of thermodynamics.(Electrical engineering: General) A joule is a measurement of energy or work, that, in mechanical systems, is equal to the force of one newton,moving an object a distance of one meter. Cellphones can have a maximum power output of 2W, which is 2 joules per second. Average power is calculated by dividing joules by seconds over a period of one or more whole waveform cycles. A joule is a measurement of energy or work, that, in mechanical systems, is equal to theforce of one newton, moving an object a distance of one meter. All related terms of 'joule' |
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