The prediction from special relativity that the length of a moving object will be shortened in the direction of motion is
A)time dilation.
B)length contraction.
C)the equivalence of mass and energy.
D)the principle of relativity.
E)none of the above.

Question

Quizplus · Accepted Answer

The prediction from special relativity that the length of a moving object will be shortened in the direction of motion is known as length contraction. Time dilation refers to the slowing down of time for a moving object relative to a stationary observer. The equivalence of mass and energy refers to the famous equation E=mc^2, which shows that mass and energy are equivalent and interchangeable. The principle of relativity states that the laws of physics are the same for all observers in uniform motion relative to one another. Therefore, the best choice is B, length contraction.

The Prediction from Special Relativity That the Length of a Moving