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Special relativity quiz
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Special relativity quizrelative to clocks in a stationary reference frame, clocks in a moving reference frame
run
a.at the same speed
b.slower
c.faster - answerb. slower
Clocks on a spaceship moving very fast relative to the Earth run more slowly when
viewed from
a.the spaceship
b.the Earth
c.both places
d.neither place - answerb. The Earth
Harry takes a space voyage and returns to find his twin sister has aged more than he
has. This is evidence that they have been in different
a. frames of reference
b. realms of time
c. space times
d. all of these
e. none of these - answerd. all of these
According to special relativity, one can travel at increased rates
a. backwards in time
b. both forward and backward in time
c. only forward in time - answerc. only forward in time
A woman standing on the ground sees a rocket ship move past her at 95% of the speed
of light. Compared to when the rocket is at rest, the woman measures the rocket's
length as
a. shorter
b. longer
c. the same length - answera. shorter
According to Einstein's theory of special relativity
a. energy and mass are aspects of each other
b. space and time are aspects of each other
c. both of these
d. none of these - answerc. both of these
, According to the well-known equation "energy equals mass times the speed of light
squared,"
a. energy is actually mass traveling at the speed of light squared
b. mass and energy travel at twice the speed of light
c. mass and energy travel at the speed of light squared
d. mass and energy are related
e. none of these - answerd. mass and energy are related
Relativity equations for time, length and momentum hold true for
a. everyday low speeds
b. relativistic speeds
c. both of these
d. none of these - answerc. both of these
An astronaut traveling forward at 0.87c holds a meterstick in spear-like fashion. An
observer at rest sees the spear's length as
a. 0.5 m
b. 1.5 m
c. 1 m
d. 1.25 m
e. 0.87 m - answer1 m
suppose you look at the huge clock on the Big Ben Tower in London and it reads 12
noon. If you could travel away from the clock at the speed of light and view it with a
telescope it would
a. run faster than normal
b. run slower than normal
c. be frozen at 12 noon - answerc. be frozen at 12 noon
A spaceship that is traveling very fast with respect to your frame of reference, fires a
photon beam that travels at speed c with respect to the spaceship. You measure the
photon beam's speed to be
a. more than C
b. equal to C
c. less than C - answerb. equal to C
If you were to travel at speeds close to the speed of light, you would notice your own
a. shape changes
b. pulse decreases
c. mass increases
d. all of these
e. none of these - answere. none of these
We are actually looking into the past when we look at
a. a distant star
b. our physics book
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