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.
barred spiral galaxy
B.
irregular galaxy
C.
elliptical galaxy
D.
ordinary spiral 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 Whirlpool galaxy
C.
the Local Group of galaxies
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.
Population I stars
D.
old red stars
Question #5
Which type of galaxy contains older stars and has very little gas and dust?
A.
Globular
B.
Spiral
C.
Irregular
D.
Elliptical
Question #6
Which galaxy shape is not part of Hubble's classification?
A.
irregular
B.
spiral
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.
halo
B.
disk
C.
bulge
D.
galactic radiative region
Question #8
Most of the observed galaxies in the universe are
A.
spiral galaxies.
B.
irregular galaxies.
C.
peculiar 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.
universe, galaxy, solar system, planet
D.
solar system, galaxy, planet, universe
Question #10
Flocculent spiral galaxies are usually described as neat and orderly with clearly defined arms.
A.
False
B.
True
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.
False
B.
True
Question #13
How many stars are in a typical spiral galaxy?
A.
hundreds
B.
billions
C.
millions
D.
thousands
Question #14
The Milky Way galaxy is the largest and most populous galaxy in the universe.
A.
True
B.
False
Question #15
Elliptical galaxies are filled with stars that primarily have
A.
low hydrogen content
B.
high metallicity values
C.
low metallicity values
D.
high dust content
Question #16
Giant elliptical galaxies are filled with which population of stars?
A.
Population I stars
B.
Population III stars
C.
Population IV stars
D.
Population II stars
Question #17
Galaxies that are extremely bright are called
A.
spiral galaxies
B.
radio galaxies
C.
superclusters
D.
active galactic nuclei
Question #18
What galaxy has arms and a central bulge?
A.
A spiral galaxy
B.
An irregular galaxy
C.
An elliptical galaxy
D.
An arm galaxy
Question #19
One obvious difference between dwarf elliptical galaxies and globular clusters is
A.
location.
B.
stellar population.
C.
color.
D.
number of stars.
Question #20
What is a blazar?
A.
A nice, well-fitted, structured jacket that many people wear in casual-formal settings.
B.
A wooden structure over 10 feet tall to be burned in a bonfire.
C.
A quasar whose relativistic jet is pointed in the direction of Earth (so we can see it).
D.
An AGN that's relatively quiet and inactive.
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