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WorksheetsGalaxies and the Universe
Total questions: 23
Worksheet time: 14mins
Name
Class
Date
1.
How many stars make up our galaxy?
a)
200
b)
200,000
c)
200 million
d)
200 billion
2.
Galaxies are composed of (best answer)
a)
stars
b)
stars and gas
c)
stars, dust, and gas
d)
stars, dust, and gas held together by gravity
3.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
4.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
5.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
6.
The most abundant type of galaxy in the universe is an...
a)
Spiral Galaxy
b)
Elliptical Galaxy
c)
Irregular Galaxy
7.
What type of galaxy is this?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Irrational
8.
The closest star to the sun is the...
a)
Sirius A
b)
Barnard's Star
c)
Luhman16
d)
Proxima Centauri
9.
The type of galaxy that is composed of the older stars and low-mass stars.
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Constellation
10.
What type of galaxy has no defined pattern or shape?
a)
Spiral
b)
Elliptical
c)
Irregular
d)
Constellation
11.
Who discovered the first galaxy outside of the Milky Way?
a)
Edwin Hubble
b)
Isaac Newton
c)
Albert Einstein
d)
Neil Armstrong
12.
What is the diameter of the Milky Way Galaxy in light years?
a)
1,000 LY
b)
10,000 LY
c)
100,000 LY
d)
1 Million LY
13.
What does the Big Bang theory suggest?
a)
The universe was just there
b)
The Milky Way is the only solar system
c)
The universe is continually expanding
d)
The universe started as a point, expanded, and will return to a point
14.
In relation to us, most galaxies are…
a)
moving toward us
b)
moving away from us
c)
not moving
d)
much smaller
15.
Why is the light from distant galaxies red-shifted?
a)
They produce more red light than nearby galaxies
b)
They are moving away from us
c)
The longer wavelengths are filtered out more by dust
d)
They are moving toward us
16.
What do the initial moments after the Big Bang have in common with the universe as it exists now?
a)
all the stars, galaxies, and planets that exist today were formed just a few moments after the Big Bang
b)
The universe back then could not sustain life, and it cannot sustain life now
c)
the universe was extremely hot then, and it is still extremely hot not
d)
the universe began expanding then, and it is still expanding today
17.
If an object is moving toward us, its spectrum will experience
a)
no shift
b)
red shift
c)
black spectrum
d)
blue shift
18.
What were the original two elements in our universe?
a)
Lithium and Carbon
b)
Hydrogen and Neon
c)
Helium and Chlorine
d)
Hydrogen and Helium
19.
Are any of the galaxies moving towards Earth? Explain.
a)
A. It is redshifted
b)
B. It is redshifted.
c)
C. It is blue shifted.
d)
A. It is blueshifted.
20.
Which of the following are responsible for the accelerated expansion of our universe?
a)
Dark Energy
b)
Dark Matter
c)
Dark Acceleration
21.
How old is the universe? (How long ago was the "Big Bang"?)
a)
13.8 million years ago
b)
13.8 billion years ago
c)
13.8 trillion years ago
d)
13.8 thousand years ago
22.
What is the name of the mysterious "glue" that holds the galaxies together?
a)
Galactic Glue
b)
Dark Energy
c)
Dark Matter
d)
Deem's Gravitational Field
23.
What is thought to be at the center of every large galaxy (like our own)?
a)
A super massive blackhole
b)
A galactic toilet
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