NEW
Font size
S
M
L
XL
WorksheetsGeneral Relativity
Total questions: 42
Worksheet time: 33mins
Name
Class
Date
1.
What is the equivalence principle?
a)
gravity and acceleration are the same thing
b)
constant speed and at rest are the same thing
c)
gravity is curvature of space
d)
gravity and constant velocity are the same thing
2.
According to Newton, gravity was a force.... According to Einstein, gravity is a ________.
a)
force
b)
curvature
c)
mystery
d)
constant velocity
3.
What does gravity do to time?
a)
speeds it up
b)
slows it down
c)
nothing
4.
Which of these provides the best analogy for what massive objects do to spacetime?
a)
coat hanger in the closet
b)
bowling ball on a rubber sheet
c)
car driving in a circle
d)
tennis ball in the dryer
5.
What year did Einstein complete General Relativity?
a)
1905
b)
1916
c)
1922
d)
1919
6.
During what rare event was Relativity confirmed?
a)
Total Solar Eclipse
b)
Total Lundar Eclipse
c)
Summer Solstice
d)
Halley's Comet
7.
At rest on the Earth would feel exactly like ______________.
a)
Being on a rocket in space moving at a constant velocity.
b)
Being on a rocket in space accelerating upwards at 9.8 m/s2
c)
Being on a rocket in space that is at rest.
d)
Being at rest on Jupiter
8.
Does a beam of light 'fall' if it is moving through a gravitational field?
a)
Yes
b)
No
9.
The 'point of no return' for a black hole is called....
a)
singularity
b)
event horizon
c)
jets
d)
accretion disk
10.
Where does all the mass that create a black hole go?
a)
event horizon
b)
singularity
c)
accretion disk
d)
jet
11.
What is gravitational lensing?
a)
slowing down of time around a black hole
b)
light bending around a massive object
c)
light moving in a straight line around a massive object
d)
light bending as it goes from one medium to another
12.
When did we first detect gravitational waves?
a)
1916
b)
1905
c)
2016
d)
1972
13.
What is at the center of most (maybe all) galaxies?
a)
Stellar mass black hole
b)
Supermassive black hole
c)
Quasar
d)
Neutron Star
14.
Which would not typically be found around black hole?
a)
Accretion disk
b)
Jet
c)
Wormhole
d)
Orbiting companion star
15.
How much is space time curved at a black hole?
a)
infinitely
b)
finitely
16.
According to Einstein, why do objects accelerate around massive bodies?
a)
a force is pulling them
b)
space is pushing them
c)
they don't
17.
Finish this phrase "Matter tells spacetime how to curve, spacetime tells matter how to ______"
a)
move
b)
collapse
c)
expand
d)
rest
18.
Describe the escape velocity of a black hole?
a)
slower than the speed of light
b)
unknown
c)
faster than the speed of light
19.
What would happen to Earth's orbit if the Sun collapsed to a black hole?
a)
it would get sucked into it
b)
it would get flung out of its orbit
c)
nothing
d)
it would explode
20.
How fast does gravity travel?
a)
gravity does not have a speed, it is instantaneous
b)
at the speed of light
c)
slower than the speed of light
21.
If the Sun all of the sudden vanished/disappeared how long would it take for the Earth's orbit to be affected by this?
a)
instantaneously
b)
8 minutes
c)
3 ly
22.
What happened during the eclipse experiment?
a)
the position of stars behind the sun moved outward
b)
the position of stars behind the sun moved inward
c)
the position of stars behind the sun remained unchanged
d)
new stars that were never seen before appeared.
23.
Which theory explains the geometric description of gravity as a curvature of spacetime around massive bodies?
a)
Theory of Special Relativity
b)
Law of Universal Gravitation
c)
Theory of General Relativity
d)
Photoelectric Theory
24.
If you were out in space and wanted to simulate the feeling of Earth's gravity, what would be the best way to do it?
a)
Accelerate upwards at 9.8 m/s2
b)
Travel at a constant velocity
c)
Travel at the escape velocity of Earth
d)
go in orbit around a large star
25.
Which two situations would feel exactly the same?
a)
Accelerating upward on an elevator on Earth; Being at rest in the middle of outer space
b)
At rest on the surface of the Earth; in orbit around the Earth on the Space Station
c)
Free Falling elevator on Earth; in orbit around the Earth on the Space Station
26.
You are watching yourself fall into a black hole. What happens?
a)
Gravitational collapse
b)
Spaghettification
c)
Length Contraction
d)
Time Dilation
27.
Someone safely orbiting a black hole is watching you fall into a black hole, what do they see?
a)
Time Dilation
b)
Spaghettification
c)
Length Contraction
d)
Gravitational collapse
28.
is it possible to orbit a black hole?
a)
Yes
b)
No
29.
When scientists are looking for black holes they look for large sources of what type of light that is emitted from the area surrounding the black hole?
a)
x-ray
b)
gamma ray
c)
infrared
d)
visible
30.
In the movie Interstellar, the main character was on a planet that was close to a black hole for a short time while his young daughter remained on Earth. Based on what you know about gravity and time, OR your knowledge of the movie... what happened?
a)
When he got back to Earth, his daughter was older than he was
b)
When he got back to Earth, his daughter was the same age but he was younger
c)
When he got back to Earth, his daughter wasn't even born yet.
d)
When he got back to Earth his daughter was just being born.
31.
Massive stars that are not quite large enough to turn into a black hole will turn into what when they collapse?
a)
white dwarf
b)
neutron star
c)
red giant
d)
binary star
32.
If the sun were a black hole, would the Earth get sucked into it?
a)
Yes
b)
No
33.
The event horizon of a black hole is _______.
a)
a surface
b)
a location
c)
matter
34.
Which aspect of a black hole is NOT infinite?
a)
Density
b)
Gravity
c)
Mass
d)
smallness of singularity
35.
Moving masses cause disturbances in this...
a)
space
b)
gravity
c)
astronomy
d)
speed
36.
What happens to gravitational waves the further you are away from the source?
a)
they get weaker
b)
they get stronger
c)
nothing
d)
they become more noticeable
37.
Which of the following is the most likely to be the mass of a stellar-mass black hole?
a)
25 solar masses
b)
100,000,000 solar masses
c)
1 solar mass
d)
.1 solar masses
38.
Which of the following is most likely to be the mass of a supermassive black hole?
a)
100,000,000,000 solar masses
b)
100 solar masses
c)
5 solar masses
d)
50 solar masses
39.
Clocks closer to a gravitational source run ______
a)
slower
b)
faster
c)
the same
40.
Which best describes why the moon orbits the Earth.... according to General Relativity?
a)
Gravity force from the Earth pulls on the moon
b)
Gravity force from the Earth pushes on the moon
c)
The moon moves around the curvature in spacetime created by the Earth's mass
41.
Does gravity affect light?
a)
Yes
b)
No
42.
Where would time run the slowest?
a)
at rest on the surface of the Earth
b)
at rest on the top of a tall mountain on Earth
c)
at rest in a deep valley
d)
at rest on the surface of the moon
Reset
