Relative to a stationary observer,a moving clock
A) always runs slower than normal.
B) always runs faster than normal.
C) keeps its normal time.
D) Any of these choice could be correct depending on the relative velocity.

Question

Quizplus · Accepted Answer

According to the theory of relativity, a moving clock runs slower than a stationary clock as observed by a stationary observer, a phenomenon known as time dilation.

Relative to a Stationary Observer,a Moving Clock