QCE Physics — Unit 4

Special Relativity — Flashcards & Quiz

Special relativity (1905) rests on two postulates: the laws of physics are the same in all inertial frames, and the speed of light in vacuum is constant. QCE Physics Unit 4 asks you to apply the Lorentz factor to time dilation, length contraction and relativistic momentum and energy. Muon decay is the canonical experimental evidence — know it.

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Last updated: March 2026