The relativity of simultaneity means that two events simultaneous for one observer:

  1. may not be simultaneous for an observer moving relative to the first
  2. never happen
  3. happen at the same place
  4. are simultaneous for everyone
Answer

A) may not be simultaneous for an observer moving relative to the first

Simultaneity is relative. SLO P-11-F-05 · Understanding

Physics MCQ · More Special Relativity MCQs · Practise