Einstein's principle of equivalence states:
A)the gravitational constant is the same everywhere in the universe
B)it is impossible to tell the difference between gravitational force and the normal force
C)every mass exerts a gravitational force on every other mass
D)gravitational mass and inertial mass are the same
E)the laws of physics are the same in all inertial reference frames

Question

Quizplus · Accepted Answer

Einstein's principle of equivalence, a cornerstone of general relativity, posits that gravitational mass (how much an object is pulled by gravity) and inertial mass (how much an object resists acceleration) are equivalent. This principle suggests that the effects of gravity can locally be indistinguishable from the effects of acceleration.

Einstein's Principle of Equivalence States