The equivalence principle says that
A) the universe is homogeneous and isotropic.
B) being stationary in a gravitational field is the same as being in an accelerated reference frame.
C) at any radius inside a star the outward gas pressure must balance the weight of the material on top.
D) mass and energy are interchangeable and neither can be destroyed.
E) gravity does not exist in space.

Question

Quizplus · Accepted Answer

The equivalence principle states that the effects of gravity are indistinguishable from the effects of acceleration, meaning being stationary in a gravitational field is equivalent to being in an accelerated reference frame.

The Equivalence Principle Says That