Clocks on a spaceship moving very fast relative to the Earth run more slowly when viewed from
A)the spaceship.
B)the Earth.
C)both places.
D)neither place.

Question

Quizplus · Accepted Answer

This is due to time dilation, a consequence of Einstein's theory of special relativity. As the spaceship moves faster and faster relative to the Earth, the clocks on the spaceship appear to run more slowly when viewed from the Earth. However, from the perspective of someone on the spaceship, their own clocks would appear to run normally while the clocks on Earth would appear to run more slowly. Therefore, the answer is B, only the Earth would observe slower moving clocks.

Clocks on a Spaceship Moving Very Fast Relative to the Earth