Astronomy 120 - Stars and Galaxies » Fall 2022 » Unit 12 Quiz
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Question #1
The Milky Way is which type of galaxy?
A.
ordinary spiral galaxy
B.
irregular galaxy
C.
barred spiral galaxy
D.
elliptical galaxy
Question #2
There are more ordinary spiral galaxies than there are barred spiral galaxies.
A.
False
B.
True
Question #3
What was the first galaxy to be recognized as being outside the Milky Way Galaxy?
A.
the Andromeda galaxy
B.
the Local Group of galaxies
C.
the Whirlpool galaxy
D.
the Large Magellanic Cloud
Question #4
The Milky Way's spiral arms are made primarily of .
A.
supernova remnants
B.
gas and dust
C.
old red stars
D.
Population I stars
Question #5
Which type of galaxy contains older stars and has very little gas and dust?
A.
Globular
B.
Elliptical
C.
Irregular
D.
Spiral
Question #6
Which galaxy shape is not part of Hubble's classification?
A.
spiral
B.
irregular
C.
spherical
D.
elliptical
Question #7
The Milky Way galaxy has various parts. Which of these is not one of the structural components of the Milky Way galaxy?
A.
galactic radiative region
B.
halo
C.
disk
D.
bulge
Question #8
Most of the observed galaxies in the universe are
A.
peculiar galaxies.
B.
irregular galaxies.
C.
spiral galaxies.
D.
elliptical galaxies.
Question #9
Which list shows the correct order of celestial object, in order of increasing size?
A.
planet, solar system, galaxy, universe
B.
galaxy, solar system, universe, planet
C.
solar system, galaxy, planet, universe
D.
universe, galaxy, solar system, planet
Question #10
Flocculent spiral galaxies are usually described as neat and orderly with clearly defined arms.
A.
True
B.
False
Question #11
There are a number of different types of spiral galaxy recognized by astronomers. Which is not one of those recognized types?
A.
normal spirals and flat spiral
B.
normal spirals and barred spirals
C.
tipped spirals and barred spirals
D.
tipped spirals and flat spiral
Question #12
A supercluster is formed by the joining of various clusters of galaxies.
A.
True
B.
False
Question #13
How many stars are in a typical spiral galaxy?
A.
millions
B.
billions
C.
thousands
D.
hundreds
Question #14
The Milky Way galaxy is the largest and most populous galaxy in the universe.
A.
False
B.
True
Question #15
Elliptical galaxies are filled with stars that primarily have
A.
low metallicity values
B.
low hydrogen content
C.
high dust content
D.
high metallicity values
Question #16
Giant elliptical galaxies are filled with which population of stars?
A.
Population III stars
B.
Population II stars
C.
Population I stars
D.
Population IV stars
Question #17
Galaxies that are extremely bright are called
A.
superclusters
B.
spiral galaxies
C.
radio galaxies
D.
active galactic nuclei
Question #18
What galaxy has arms and a central bulge?
A.
A spiral galaxy
B.
An arm galaxy
C.
An irregular galaxy
D.
An elliptical galaxy
Question #19
One obvious difference between dwarf elliptical galaxies and globular clusters is
A.
color.
B.
location.
C.
stellar population.
D.
number of stars.
Question #20
What is a blazar?
A.
A wooden structure over 10 feet tall to be burned in a bonfire.
B.
An AGN that's relatively quiet and inactive.
C.
A nice, well-fitted, structured jacket that many people wear in casual-formal settings.
D.
A quasar whose relativistic jet is pointed in the direction of Earth (so we can see it).
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