Exam-style question
Try this first
The principle of relativity states that:.
- A.The laws of physics are invariant in all inertial reference frames.
- B.The speed of light is greater than any other speed.
- C.Time dilation occurs only in non‑inertial frames.
- D.The gravitational constant varies with velocity.
Model answer
What a good answer should say
- The laws of physics are invariant in all inertial reference frames.
Explanation
Why this works
formula/rule: Principle of relativity – laws of physics are the same in all inertial frames; substitution: none; working: none; answer: The laws of physics are invariant in all inertial reference frames.; units/conclusion: This is the formal statement of the principle.
Common mistake
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