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WorksheetsTHE BLACK HOLES
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
If a dying star's core is less than 1.4 times the mass of the Sun, it becomes ___
a)
a white dwarf
b)
a neutron star
c)
a red giant
d)
a black hole
2.
If a dying star's core is between 1.4 and 2.8 times the Sun's mass, it becomes ___
a)
a white dwarf
b)
a neutron star
c)
a red giant
d)
a black hole
3.
For Earth, the escape velocity is about ___
a)
11 km per hour
b)
11 km per second
c)
600 km per hour
d)
600 km per second
4.
A neutron star, with its immense gravity, can have an escape velocity that's up to ___
a)
one quarter of the speed of light
b)
half the speed of light
c)
the speed of light
d)
twice the speed of light
5.
Nothing can escape, not even light, once the core of a neutron star shrinks down to ___
a)
roughly 1.8 km
b)
roughly 8.1 km
c)
roughly 18 km
d)
roughly 81 km
6.
To become a black hole, the original star must have a mass of ___
a)
more than 1/4 of the Sun's mass
b)
more than 1.4 times the Sun's mass
c)
more than 4 times the Sun's mass
d)
more than 20 times the Sun's mass
7.
The strength of gravity you feel from an object depends on ___
a)
how large it is and your distance from its center
b)
how massive it is and your distance from its center
c)
how large it is and its density
d)
how massive and dense it is
8.
How Big is a Solar Mass
a)
The Size of Earth
b)
The size of the Sun
c)
The Size of the star HJ - X1BY976
d)
The size of a 20,000 X 20,000 X 20,000 mile cube
9.
What Are The Two Main Classes of Black holes
a)
Stellar and Supermassive
b)
Micro and Intermediate
c)
Stellar and Intermediate
d)
Intermediate and Supermassive
10.
The Closets Black Hole From Earth Is __________ Light Years away.
a)
27,000
b)
270,000
c)
17,000
d)
37,000
11.
How Does A Black Hole Distort Light
a)
It Makes A Ring Of Light Around It's self
b)
It Curves Light at a 290 degree angle
c)
It Makes The Sky Around It All White For A mile
d)
It is unknown how black holes distort light
12.
When Your Body Goes Inside A Black Hole The Stretching effect is called what
a)
spaghettification
b)
stretchification
c)
longification
d)
sausageification
13.
A ________ black hole can make a worm hole
a)
spinning
b)
moving
c)
decaying
d)
radioactive
14.
How do we spot Black Holes
a)
By using gamma rays and x-rays to detect high energy sources
b)
By using high energy to detect gamma rays and x-rays
c)
By using radioactive waves to detect high energy sources
d)
By using massive telescopes to detect gamma rays
15.
Where are the most supermassive black holes
a)
In most constellations
b)
It is unkown
c)
In the center of most galaxies
d)
Right next to large stars
16.
What was the first discovered black hole
a)
1-X Cygnus
b)
Cygnus 1-X
c)
Cgynus X-1
d)
Cygnus X-1
17.
how many light years is the nearest black hole
a)
100
b)
1,000
c)
10
d)
1
18.
where is it located
a)
in space
b)
no one knows
c)
under water
d)
in the solar system
19.
what is a black hole
a)
it is a sun
b)
it is a planet
c)
it is a moon
d)
it is a force that pulls objects to it
20.
is it real
a)
yes!!!!!
b)
no!!!!!!
c)
maybe
d)
I don't know
21.
what subject is a black hole
a)
science
b)
english
c)
math
d)
social studies
22.
Where is the nearest supermassive black hole?
a)
At the center of our solar system
b)
At the center of our galaxy
c)
Not near our galaxy of solar system
d)
On the other end of the universe
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