Energy Definition
energy
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English
Wikipedia has a portal on: EnergyEtymology
From Ancient Greek ἐνέργεια (energeia, “action, act, work”), from ἐνεργός (energos, “active”), from ἐν (en, “in”) + ἔργον (ergon, “work”).
Pronunciation
Noun
energy (plural energies)
- The impetus behind all motion and all activity.
- The capacity to do work.
- (physics) A quantity that denotes the ability to do work and is measured in a unit dimensioned in mass × distance²/time² (ML²/T²) or the equivalent.
- Units:
- SI: joule (J), kilowatt-hour (kW·h)
- CGS: erg (erg)
- Customary: foot-pound-force, calorie, kilocalorie (i.e. dietary calories), BTU, liter-atmosphere, ton of TNT
- Units:
- (New Age jargon) An intangible force that is preserved and transferred in human interactions; shared mood or group habit.
Derived terms
Terms derived from "energy"Related terms
External links
- energy in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
- energy in The Century Dictionary, The Century Co., New York, 1911
Anagrams
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In physics, energy (Ancient Greek: ἐνέργεια energeia "activity, operation") is an indirectly observed quantity. It is often understood as the ability a physical system has to do work on other physical systems. Since work is defined as a force acting through a distance (a length of space), energy is always equivalent to the ability to exert pulls or pushes against the basic forces of nature, along a path of a certain length.
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