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WorksheetsAstrophysics
Total questions: 20
Worksheet time: 7mins
The point of no return near a black hole past which not even light can escape is the...
jet
Where does all the mass that created a black hole go?
accretion disk
singularity
jets
Neutron star
Nothing
What does LIGO detect?
Visible Light
X-rays
Radio Waves
Gravitational Waves
How fast do gravitational waves travel?
instantaneously
faster than the speed of light
at the speed of light
If the Sun suddenly disappeared how long would it take to affect Earth's orbit?
it never would
is it possible for light to orbit a black hole?
supergiant
black dwarf
Which of the following is most likely to be the mass of a stellar-mass black hole?
0.1 solar masses
The densest visible matter is found in...
black dwarves
white dwarves
neutron stars
black holes
How do stars generate energy?
Nuclear fusion
Nuclear fission
Unknown
What does LIGO stand for?
Laser Interferometer Gravity Outhouse
Let's Integrate Good Objects
Light is Going On
Laser Interferometer Gravitational-Wave Observatory
The first signal that LIGO detected was from a...
black hole merger
neutron star merger
plane flying overhead
rabbit on the ground
A star is close to exploding into a supernovae when it starts to form _______ at its core.
Iron
Carbon
Niobium
Uranium
The heaviest known elements were created by
the Big Bang
black hole mergers
supernovae
neutron star mergers
What are some possible applications of LIGO (select all that apply)?
measuring the expansion of the universe
studying how large stars die
looking back to the Big Bang
finding planets around distant stars
