Question 1

According to the principle of equivalence

Accepted Answer

A)  mass and energy are two forms of the same thing.
B)  space and time are two forms of the same thing.
C)  electricity and magnetism are two forms of the same thing.
D)  observations made in an accelerating reference frame are indistinguishable from those made in a gravitational field.
E)  all of theseF) A) and D)
G) All of the above D

Question 2

The quantity that undergoes a red shift is

Accepted Answer

A)  wave frequency.
B)  wavelength.
C)  both of these
D)  neither of theseE) A) and D)
F) B) and C)

Question 3

The two-dimensional surface of the Earth is

Accepted Answer

A)  positively curved.
B)  negatively curved.
C)  both of these
D)  none of theseE) A) and B)
F) C) and D)

Question 4

If the sun collapsed to a black hole,the time required for Earth to orbit the collapsed sun would

Accepted Answer

A)  increase.
B)  decrease.
C)  stay the same.D) A) and B)
E) A) and C)

Question 5

A measuring stick on a rapidly rotating disk will not appear to shrink if it is oriented along the

Accepted Answer

A)  circumference.
B)  radius.
C)  either of these
D)  neither of theseE) None of the above
F) A) and B)

Question 6

At the bottom of a well deep enough so that the acceleration due to gravity is less than 1 g,a watch will run

Accepted Answer

A)  slow.
B)  fast.
C)  the same as at 1 g.D) None of the above
E) A) and B)

Question 7

Light bends when it

Accepted Answer

A)  passes a massive star.
B)  passes through a gravitational field.
C)  both of these
D)  neither of theseE) A) and C)
F) All of the above

Question 8

A strong gravitational field

Accepted Answer

A)  slows a clock.
B)  speeds up a clock.
C)  does not affect a clock.D) B) and C)
E) All of the above A

Question 9

An astronaut falling into a black hole would see the universe

Accepted Answer

A)  red shifted.
B)  blue shifted.C) A) and B)
D) undefined

Question 10

The quantity that shifts in a gravitational red shift is

Accepted Answer

A)  wave frequency.
B)  wave direction.
C)  field intensity.
D)  space-time curvature.
E)  none of theseF) D) and E)
G) B) and D)

Question 11

Fire a cannonball from a cannon and it curves due to gravity.Shine a light from a flashlight and it

Accepted Answer

A)  curves per second the same as the cannonball.
B)  follows a straight-line path with no curvature at all.
C)  curves half as much as the cannonball.
D)  curves slightly,but not as much per second as the cannonball.E) B) and D)
F) None of the above

Question 12

If a star 100 light-years away explodes,time for the gravitational waves to reach Earth is 100 years as measured from

Accepted Answer

A)  any uniformly moving reference frame.
B)  any accelerating reference frame.
C)  any reference frame,accelerated or not.
D)  the reference frame of the waves.
E)  Earth.F) C) and E)
G) C) and D)

Question 13

Important support for General Relativity came from studies of the precession of the orbit of

Accepted Answer

A)  Mercury.
B)  Venus.
C)  Earth.
D)  Mars.
E)  asteroids.F) A) and D)
G) A) and C) A

Question 14

If a star that is 10 light-years away from Earth explodes,gravitational waves from the explosion will reach Earth in

Accepted Answer

A)  less than 10 years.
B)  more than 10 years.
C)  10 years.D) B) and C)
E) A) and C)

Question 15

The orbit of Mercury precesses because

Accepted Answer

A)  Mercury moves in the gravitational field of the other planets.
B)  Mercury travels faster than any other planet.
C)  Mercury is closest to the sun.
D)  the sun's gravitational field varies along Mercury's orbit.
E)  none of theseF) C) and D)
G) D) and E)

Question 16

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

Accepted Answer

A)  less than 20 pushups.
B)  20 pushups.
C)  more than 20 pushups.D) None of the above
E) B) and C)

Question 17

The measured ratio of circumference to diameter on a disk is pi when the disk is

Accepted Answer

A)  moving at relativistic speeds.
B)  rapidly rotating.
C)  at rest.
D)  all of these
E)  none of theseF) D) and E)
G) B) and E)

Question 18

In a one-g gravitational field,in one second,a light beam will curve beneath a perfectly straight line by

Accepted Answer

A)  less than 4.9 m.
B)  4) 9 m.
C)  more than 4.9 m.D) A) and B)
E) A) and C)

Question 19

Compared to Newton's theory of gravitation,Einstein's theory

Accepted Answer

A)  is an exception to the correspondence principle.
B)  obeys the correspondence principle.
C)  neither of theseD) All of the above
E) A) and C)

Question 20

According to relativity theory,it is possible to reverse time and grow younger when you

Accepted Answer

A)  are near a black hole.
B)  are near a very large gravitational field.
C)  travel at nearly the speed of light.
D)  You can never grow younger.
E)  none of theseF) B) and E)
G) B) and C)

Exam 36: General Theory of Relativity

According to the principle of equivalence

Correct AnswerverifiedD

The quantity that undergoes a red shift is

Correct AnswerverifiedShow Answer

The two-dimensional surface of the Earth is

Correct AnswerverifiedShow Answer

If the sun collapsed to a black hole,the time required for Earth to orbit the collapsed sun would

Correct AnswerverifiedShow Answer

A measuring stick on a rapidly rotating disk will not appear to shrink if it is oriented along the

Correct AnswerverifiedShow Answer

At the bottom of a well deep enough so that the acceleration due to gravity is less than 1 g,a watch will run

Correct AnswerverifiedShow Answer

Light bends when it

Correct AnswerverifiedShow Answer

A strong gravitational field

Correct AnswerverifiedA

An astronaut falling into a black hole would see the universe

Correct AnswerverifiedShow Answer

The quantity that shifts in a gravitational red shift is

Correct AnswerverifiedShow Answer

Fire a cannonball from a cannon and it curves due to gravity.Shine a light from a flashlight and it

Correct AnswerverifiedShow Answer

If a star 100 light-years away explodes,time for the gravitational waves to reach Earth is 100 years as measured from

Correct AnswerverifiedShow Answer

Important support for General Relativity came from studies of the precession of the orbit of

Correct AnswerverifiedA

If a star that is 10 light-years away from Earth explodes,gravitational waves from the explosion will reach Earth in

Correct AnswerverifiedShow Answer

The orbit of Mercury precesses because

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The measured ratio of circumference to diameter on a disk is pi when the disk is

Correct AnswerverifiedShow Answer

In a one-g gravitational field,in one second,a light beam will curve beneath a perfectly straight line by

Correct AnswerverifiedShow Answer

Compared to Newton's theory of gravitation,Einstein's theory

Correct AnswerverifiedShow Answer

According to relativity theory,it is possible to reverse time and grow younger when you

Correct AnswerverifiedShow Answer

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