Maeckes logo

<    1    >

Rest mass

When a particle would be at rest, you get the rest mass m0.



It is expressed in grams or in MeV/c2. Proper mass is the same for all observers with any reference frames. In special relativity, rest mass means invariant mass.

Near the speed of light, particles have a higher mass. This is called the relativistic mass mv.


Deutsch   Español   Français   Nederlands   中文   Русский