1.
Galileo held that measurements of time were _____ and that measurements of distance were ______.
A.
absolute; relative
B.
absolute; absolute
C.
relative; absolute
D.
relative; relative
2.
Einstein held that measurements of time were _____ and that measurements of distance were ______.
A.
relative; relative
B.
absolute; absolute
C.
absolute; relative
D.
relative; absolute
3.
In Einstein's special relativity, the ________ are the same for every inertial observer.
A.
electromagnetic laws of physics
B.
laws of physics (in entirety)
C.
mechanical laws of physics
D.
optical laws of physics
4.
______ is maintained by all systems of relativity in physics.
A.
Simultaneity
B.
Causality
C.
Duality
5.
According to Galileo, the ________ are the same for every inertial observer.
A.
optical laws of physics
B.
mechanical laws of physics
C.
electromagnetic laws of physics
D.
laws of physics (in entirety)
6.
In special relativity, the Galilean concept of distance is replaced by the Lorentz invariant interval, which _________.
A.
separates measures of space from time
B.
combines measures of mass with time
C.
removes measure of space and /or time
D.
combines measures of space with time
7.
Special relativity predicts that an outside, inertial observer sees a moving object as _____ than an observer moving with the object.
A.
longer
B.
shorter
C.
brighter
D.
heavier
8.
In special relativity, Einstein replaced Galileo's notion of absolute time with
A.
the Prime Mover
B.
the constancy of the speed of sound
C.
the constancy of the speed of light
D.
the notion of absolute space
9.
Events that are simultaneous in Galilean relativity are ________ simultaneous in special relativity.
A.
always
B.
sometimes
C.
never
10.
Our idea of spacetime is
A.
the set of all of the events that happened on Earth
B.
only part of special relativity
C.
the set of all of the events that happened in the Universe
D.
the set of all of the events that happened in the Solar System
11.
Special relativity predicts that moving clocks _______ than stationary clocks.
A.
are bigger
B.
run slower
C.
run faster
D.
are no different
12.
In general relativity, clocks deeper in a gravitational field run ________ clocks higher in the field.
A.
the same as
B.
randomly from
C.
faster than
D.
slower than
13.
According to general relativity, light
A.
travels along a curve due to length contraction
B.
travels in a straight line
C.
travels along a curve due to uniform speed
D.
travels along a curve due to uniform gravity
14.
The equivalence between gravitational and inertial mass is explained in
A.
the set of all of the events that happened on Earth
B.
special relativity
C.
general relativity
D.
Galilean relativity
15.
In Galilean relativity, inertial mass and gravitational mass are
A.
differ with time
B.
equal
C.
change with direction
D.
differ with speed
16.
According to Einstein's Principle of Equivalence, it is not possible to distinguish between
A.
uniform gravity and uniform speed
B.
uniform speed and uniform distance
C.
uniform speed and uniform acceleration
D.
uniform acceleration and uniform gravity
17.
Newton's law of gravity was inconsistent with Einstein's special relativity because
A.
the distance, and thus the force, depends on the reference frame chosen
B.
time dilation slows the apparent acceleration, reducing the force
C.
mass, and thus the force, depends on the reference frame chosen
D.
Newton didn't know about Einstein
18.
According to Einstein's general relativity, tides may be viewed arising from
A.
the forces of Newton's gravity vs. inertia
B.
the effects of inertia alone
C.
the instability of the Earth
D.
warping and stretching of space due to mass nearby
19.
In gravitationally-warped space, two parallel lines
A.
cannot ever intersect
B.
can only grow farther apart
C.
may intersect
20.
According to Einstein, gravitational time dilation can be understood as a kind of
A.
Doppler shift
B.
Lorentz contraction
C.
mass-energy conversion
D.
Lorentz expansion
21.
In gravitationally-warped space, the circumference of a circle
A.
is less than 2
p
times the radius
B.
is exactly equal to 2
p
times the radius
C.
is more than 2
p
times the radius
D.
is independent of the radius
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