Skip to main content
mass energy

mass energy

1 7.9
Energy an object has because of its mass, as in E = mc²
  • noun
  • /mæs ˈɛnərdʒi/
  • Specialized
translation icon : energía de masa
  • The IR spectroscopist agreed; it was all about conservation of energy, er, mass-energy.
  • mass energy content
  • center-of-mass energy
  • percent of the mass energy

Examples

  • So if your center of mass energy becomes much much larger than the Planck scale Planck mass.

  • And consider that space-time due to the fact that it can be bent by mass energy, it contains negative energy.

  • Square of the center of mass energy we call S.

  • It was the sum of the four momenta coming in squared or the center of mass energy squared.

  • Because the nuclear masses were well known and the kinetic energies of the emitted alphas were measurable, the mass-energy relation could be verified.

    Academic text (2012)
  • According to the mass-energy equivalence formula E = mc², an object traveling at c would have infinite mass and would require an infinite amount of energy to reach c.

    Blog text (2)
  • It keeps its mass-energy—because it cannot radiate it—and therefore preserves also its gravitational attraction.

    Academic text (1991)
  • You need a particle accelerator, and you need the center-of-mass energy of the collisions created using that accelerator to be greater than the mass-energy of the particle you want to produce, in this case, 125 GeV.

    Blog text (3)
  • When CERN's Large Hadron Collider is up and running in a few years (see figure 1), it will smash protons against protons with 14 TeV center-of-mass energy.

    Academic text (2004)
  • The light comes from ordinary matter, which makes up less than 5 percent of the mass energy content of the universe.

Synonyms

rest energy
vsmass energy
  • Specialized
8.2

Energy equal to a particle's mass when it is not moving, calculated as mass times the speed of light squared

is the general property for any body's mass, not only stationary particles

Antonyms

masslessness
  • Specialized
9.9

A state of having no weight or heaviness

How Much

mass energy
  • Specialized
1 7.9
masslessness
  • Specialized
9.9

Surface Forms

mass energy singular
mass energies plural

Morphology

mass + energy

The compound is a straightforward noun–noun composition: 'mass' + 'energy' denotes the energy associated with mass, so a learner who knows both words can infer that basic meaning. This compositional relation is cross-linguistically common (e.g. 'energía de masa') making the core sense transparent, although deeper technical implications like E=mc² are advanced domain knowledge.

Etymology

Mass energy comes from the simple idea that mass itself is a form of energy, as shown by Einstein's formula E = mc². So, it means 'the energy that a body has because of its mass', and a small amount of mass can become a large amount of energy.