7
QuizMultiple Choice
Unit Test — Unit test
Question 7 • 3262 CR Physics B 25/26
Finn drew a diagram to compare Einstein’s two postulates of relativity. Which labels belong in the areas marked X, Y, and Z?
Answer
A
X: applies to objects moving almost at the speed of lightY: describes the effect of constant motion in space on timeZ: speed of light is always 3.0 × 108 m/sB
X: speed of light is always 3.0 × 108 m/s Y: applies to objects moving almost at the speed of lightZ: describes the effect of constant motion in space on timeC
X: speed of light through empty space is the same for all observersY: laws of physics are the same for all uniformly moving frames of motionZ: applies to objects with constant velocityD
X: laws of physics are the same for all uniformly moving frames of motionY: applies to objects with constant velocityZ: speed of light through empty space is the same for all observers