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WorksheetsEarth Science: Stars, Galaxies and The Universe
Total questions: 38
Worksheet time: 2hrs 52mins
Name
Class
Date
1.
Which of the following is NOT true about the universe?
a)
the universe is expanding
b)
the universe is made up of an infinite number of galaxies
c)
the universe is everything
d)
the universe is smaller than a galaxy
2.
Because almost all galaxies show red shifted spectra, we know that...
a)
nobody likes us.
b)
the sky must be dark at night.
c)
the Milky Way is at the center of the universe.
d)
the universe is expanding.
3.
What is the longest wavelength of light?
a)
red
b)
blue
c)
green
d)
yellow
4.
If a galaxy is blue shifted it means that....
a)
it is moving away from our galaxy.
b)
it is moving toward our galaxy.
c)
it is sad.
d)
it is frozen.
5.
If the universe continues to expand forever, it is an...
a)
open universe.
b)
closed universe.
c)
flat universe.
6.
If the universe stops expanding but doesn't collapse it is a....
a)
open universe.
b)
closed universe.
c)
flat universe.
7.
If the universe stops expanding and begins to contract, it is a...
a)
open universe.
b)
closed universe.
c)
flat universe.
8.
The change in the frequency of wave due to the relative motion of the source of the wave relative to the observer is called....
a)
the Doppler Effect.
b)
the Big Bang.
c)
cosmic background radiation.
d)
the Hubble Constant.
9.
What is cosmic background radiation?
a)
Microwave radiation that is left over from the Big Bang.
b)
Radio waves that are emitted by the Sun.
c)
Energy that is coming from black holes.
10.
What is the shortest wavelength of light?
a)
red
b)
blue
c)
green
d)
yellow
11.
Very hot stars are what color?
a)
Blue
b)
Yellow
c)
Red
d)
Orange
12.
What is the color of the coolest stars?
a)
blue
b)
Yellow
c)
Red
d)
Orange
13.
Where are stars the most stable?
a)
Supergiant
b)
Main sequence
c)
White dwarf
d)
black dwarf
14.
Put the stars in order from hottest to coolest.
a)
Blue, Red, White, Yellow, Orange,
b)
Red, White, Yellow, Orange, Blue
c)
Blue, White, Yellow, Red, Orange
d)
Blue, White, Yellow, Orange, Red
15.
Low-mass stars eventually collapse into what final star remnant?
a)
Black holes
b)
Neutron stars
c)
White dwarfs
d)
Nebulae
16.
The Sun makes up over 99% of the solar system's mass.
a)
True
b)
False
17.
What will the Sun become at the end of its lifecycle?
a)
red giant
b)
red dwarf
c)
white dwarf
d)
super nova
18.
What is the process that occurs in the core of a star, like the sun, that produces energy?
a)
fission
b)
fusion
c)
decay
d)
convection
19.
What stage of stellar evolution is the sun experiencing at this time?
a)
protostar
b)
main-sequence
c)
giant
d)
white dwarf
20.
Which of the following stages is the earliest in the development of a star?
a)
dark nebula
b)
neutron star
c)
protostar
d)
giant
21.
What is the stage before this black hole?
a)
Supernova
b)
Neutron star
c)
white dwarf
d)
black dwarf
22.
True or False: Massive stars have LONG lives.
a)
False
b)
True
23.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
24.
Which star is considered a Main Sequence Star?
a)
A
b)
B
c)
C
d)
D
25.
All stars begin as a __________?
a)
giant
b)
black hole
c)
white dwarf
d)
nebula
26.
What is the term used for a cloud of gas and dust?
a)
gas giant
b)
solar dust
c)
solar cloud
d)
nebula
27.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
28.
What color star lasts the longest?
a)
blue
b)
red
c)
yellow
d)
white
29.
What layer of the Sun can we see?
a)
Corona
b)
Photosphere
c)
Chromosphere
d)
Radiative zone
30.
What color star lasts the longest?
a)
blue
b)
red
c)
yellow
d)
white
31.
______ is a force that causes dust particles to stick together in a nebula.
a)
nuclear fusion
b)
gravity
c)
hydrogen
d)
iron
32.
What is the correct order for describing the stages of the life cycle of the Sun?
a)
A, B, then C
b)
A, C, then B
c)
B, C then A
d)
B, A then C
33.
What is the term used for a cloud of gas and dust?
a)
gas giant
b)
solar dust
c)
solar cloud
d)
nebula
34.
All stars begin as a __________?
a)
giant
b)
black hole
c)
white dwarf
d)
nebula
35.
Which star is considered a Main Sequence Star?
a)
A
b)
B
c)
C
d)
D
36.
Which star has the lowest temperature?
a)
A
b)
B
c)
C
d)
D
37.
Which star has the lowest luminosity?
a)
A
b)
B
c)
C
d)
D
38.
True or False: Massive stars have LONG lives.
a)
False
b)
True
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