Exam-style question
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The principle of relativity for inertial frames implies that:.
- A.No experiment can distinguish uniform motion from rest.
- B.Light speed depends on the source's velocity.
- C.Gravitational time dilation occurs in all frames.
- D.Energy is conserved only in stationary frames.
Model answer
What a good answer should say
- No experiment can distinguish uniform motion from rest.
Explanation
Why this works
formula/rule: Principle of relativity – uniform motion is indistinguishable from rest by any physical experiment; substitution: none; working: none; answer: No experiment can distinguish uniform motion from rest.; units/conclusion: This is the core statement of the principle for inertial frames.
Common mistake
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