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WorksheetsBlack holes
Total questions: 15
Worksheet time: 8mins
Are any black holes close to Earth?
yes
no
how far is the closest black holes to earth?
seven thousand light-years away
nine thousand light-years away
twenty thousand light-years away
fifty thousand light-years away
Will our Sun become a black hole?
no
the sun is too big
yes
What is the biggest black hole?
3.8 times the mass of our sun
12.3 times the mass of our sun
6.6 billion times the mass of the Sun
10.43 billion times the mass of the Sun
What happens when you get close to a black hole?
nothing
depend on the size and mass of the black hole
i don't know
What is a black hole?
a new star
a star that has collapsed inward from its own weight.
a place where money apparently disappear without trace.
Can anything escape from a black hole?
yes
no
How many black holes are there?
under several dozen
over several dozen
several dozen
How can a black hole's own gravity, but not light, escape from it?
a warp in space-time
magic
what year did people come up with the name black hole
1850s
1860s
1960s
1950s
who discovered black holes
Nikola Tesla
karl schwarzschild
Johannes Kepler
Annie Jump Cannon
Will our universe become a black hole?
no
definitely
yes
Unlikely
how many types of black holes are there
4
3
2
1
how long would it take for a black hole the mass of the Sun to evaporate?
57 years
100 years
10 years
67 years
what year was the first black hole discovered
1916
1917
1918
1920
