Light bends when it
A) passes a massive star.
B) passes through a gravitational field.
C) both of these
D) neither of these
[Ques. 2] A clock on the surface of a shrinking star will run progressively
A) slower.
B) faster.
C) no difference
[Ques. 3] The quantity that undergoes a red shift is
A) wave frequency.
B) wavelength.
C) both of these
D) neither of these
[Ques. 4] A person on the ground floor of a skyscraper ages
A) faster than a person on the top floor.
B) slower than a person on the top floor.
C) at the same speed as a person on the top floor.
[Ques. 5] Compared to a clock at the bottom of a very tall skyscraper, a clock at the top of this skyscraper will appear to run
A) slower.
B) faster.
C) the same.
[Ques. 6] A strong gravitational field
A) slows a clock.
B) speeds up a clock.
C) has no effect on the speed of a clock.
[Ques. 7] General relativity is most concerned with
A) acceleration.
B) gravitation.
C) space-time geometry.
D) all of these
E) none of these
[Ques. 8] Suppose at the surface of the Earth a person can do 20 pushups. In a spaceship far away from any gravitational influence, accelerating at g, the same person could do
A) less than 20 pushups.
B) 20 pushups.
C) more than 20 pushups.
[Ques. 9] Space and time are
A) bound together.
B) independent entities.
[Ques. 10] Technically, its not mass that causes the curvature of spacetime, but
A) mass density.
B) energy density.
C) thermal mass.
D) thermal mass fluctuations.
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