Multiple Choice
What does the equivalence principle say?
A) Gravity is the same thing as curvature of spacetime.
B) The effects of gravity are exactly equivalent to the effects of acceleration.
C) You cannot distinguish between motion at constant velocity and weight in a gravitational field.
D) The effects of relativity are exactly equivalent to those predicted by Newton's laws of motion.
E) All observers must always measure the same (equivalent) weights for moving objects.
Correct Answer:

Verified
Correct Answer:
Verified
Q15: According to general relativity,why does Earth orbit
Q16: What evidence supports the predicted existence of
Q17: According to general relativity,what is a black
Q18: Planes traveling between Seattle and Tokyo often
Q19: If you draw a spacetime diagram,the worldline
Q21: Suppose you are in a spaceship accelerating
Q22: What is spacetime?<br>A)Time that we measure when
Q23: Which of the following best describes the
Q24: According to general relativity,how is time affected
Q25: What do we mean by gravitational time