Mass-energy
Definition, Meaning & Examples
Part of speech noun
Quick meaning: Mass-energy is a noun meaning (physics) Mass and energy as a unified concept.
Meaning
(physics) Mass and energy as a unified concept.
More Meanings
- (also spelled mass energy) The energy associated with any given mass according to special relativity, E = mc².
- mass-to-energy
Example Sentences
Mass-energy conversion occurs during nuclear fusion and fission.
For equations normalized with Planck units, the quantities of mass and energy become numerically identical, revealing their true nature as mass-energy.
Whereas in classical physics mass and energy are distinct concepts, on relativistic scales, they become indistinguishable and are replaced by mass-energy.
In higher-energy physics, mass and energy eventually become meaningless as individual concepts; a particle's so-called "mass" is actually mass-energy and is often given equivalently in units of either mass (GeV/c²) or energy (GeV).
Word Forms
- mass-energies
Related Words
Related dictionary entries include momenergy, energy, pseudoenergy, materialization, isomass, weight.
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Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
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