The equivalence principle can be illustrated by
A) a person riding in an elevator.
B) a space capsule coasting through space at constant velocity.
C) the change in mass of a moving body.
D) the formation of energy by nuclear fusion.
E) the increase in the speed of light from a star as the light moves past the sun during a solar eclipse.

Question

Quizplus · Accepted Answer

The equivalence principle, a key concept in Einstein's theory of general relativity, states that the effects of gravity are indistinguishable from the effects of acceleration. A person riding in an elevator can experience this principle, as the sensation of weightlessness or increased weight can mimic gravitational effects depending on the elevator's motion.

The Equivalence Principle Can Be Illustrated by