relativistic mass

Questions

What does relativistic mass mean?

The increased mass of an object moving at relativistic speed relative to an observer.

How to pronounce relativistic mass

1. Open the pronunciation page — Open the Speakur entry for “relativistic mass”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
3. Play the audio — Click Play to hear reference audio for “relativistic mass”.
4. Repeat and practice — Say “relativistic mass” aloud, matching stress and vowels until it feels natural.