| 释义 |
Definition of rest mass in English: rest massnoun Physics The mass of a body when at rest. Example sentencesExamples - The neutrino was known from the start to be an extraordinarily light particle, perhaps massless, since its rest mass could never be detected.
- Any object with a non-zero rest mass (like a dust mote) can never reach light speed.
- A photon has zero rest mass, but it carries energy and momentum.
- The concept of the rest mass derives from special relativity.
- Wolfgang Pauli suggested in 1930 that beta decay must involve a third particle that would be neutral, have negligible rest mass and a spin of one-half.
Definition of rest mass in US English: rest massnoun Physics The mass of a body when at rest. Example sentencesExamples - A photon has zero rest mass, but it carries energy and momentum.
- Any object with a non-zero rest mass (like a dust mote) can never reach light speed.
- The neutrino was known from the start to be an extraordinarily light particle, perhaps massless, since its rest mass could never be detected.
- The concept of the rest mass derives from special relativity.
- Wolfgang Pauli suggested in 1930 that beta decay must involve a third particle that would be neutral, have negligible rest mass and a spin of one-half.
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