What will observers in different inertial frames of reference always agree on?
A) how the speed of light varies with the motion of an observer
B) the length of the meter, but not the duration of the second
C) the rate each frame is accelerating
D) the results of physics experiments performed in each frame
E) whether events are simultaneous or not

Question

Quizplus · Accepted Answer

The results of physics experiments performed in each frame will always be the same, regardless of the frame of reference. This is a fundamental principle of the theory of relativity, and is known as the principle of relativity. It means that the laws of physics are the same in all inertial frames of reference, and that all observers will agree on the results of physics experiments, as long as those experiments are conducted in a truly inertial frame.

What Will Observers in Different Inertial Frames of Reference Always