1|Page
Astro 1 PSU Final Exam Prep Test Bank Latest 2025
With 430 Exam Practice Questions And Correct
Verified Answers/ PSU Astro 1 Exam Prep
Questions Bank/ Astronomy
Which is the smallest object? - ...ANSWER...✓✓-A neutron
star
A galaxy has an H-alpha emission line observed at a
wavelength 10 percent larger than the rest wavelength of
H-alpha. What is the redshift of the galaxy? -
...ANSWER...✓✓-0.1
What is in this image? - ...ANSWER...✓✓-Supernova
remnant
Which is the most luminous? - ...ANSWER...✓✓-Quasar
Which contains the most stars? - ...ANSWER...✓✓-A spiral
galaxy
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Galaxy A appears twice the angular size of Galaxy B.
Assuming the two galaxies have the same physics size in
kiloparsecs, which of the following is true? -
...ANSWER...✓✓-Galaxy B is 2 times further away than
Galaxy A
What fundamental particles make a Helium-3 atom? -
...ANSWER...✓✓-5 up quarks, 4 down quarks, 2 electrons
What type of galaxy is in this image? - ...ANSWER...✓✓-
SBc
Which statement is FALSE? - ...ANSWER...✓✓-Planetary
nebulae usually have black holes at their centers
Which statement is TRUE? - ...ANSWER...✓✓-Stars form in
molecular clouds, where temperatures are about 10
degrees Kelvin
How tiny a spot is the Hubble Deep Field? -
...ANSWER...✓✓-The size of President Roosevelt's eye on
a dime held at arm's length
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Among these choices, what is the last thing that happens
in the history of the Universe? - ...ANSWER...✓✓-
Electrons join with nuclei to make atoms
If a galaxy had no dark matter, we would observe ... -
...ANSWER...✓✓-The rotation velocity would decrease with
increasing distance like the Keplerian curve in our Solar
System
How many times bigger is the Local Group of galaxies in
which the Milky Way resides than the Milky Way itself? -
...ANSWER...✓✓-About 100 times bigger
Which one of the following is FALSE? - ...ANSWER...✓✓-
Galaxy collisions destroy most of the stars in the galaxies
involved
If a galaxy is moving away from us the wavelength of the
light it emits will be ... - ...ANSWER...✓✓-Increased
If light takes 4 billion years to reach us from a distant
galaxy, how many times farther away is the distant galaxy
than the Andromeda galaxy, which is 2 million
, 4|Page
light years away? - ...ANSWER...✓✓-2,000 times
The stars in the halo of our Milky Way Galaxy are -
...ANSWER...✓✓-Older and redder than those in the disk
The supermassive black hole in the center of the Milky
Way has a mass of - ...ANSWER...✓✓-4 million solar
masses
Which force has as its boson the photon? -
...ANSWER...✓✓-Electromagnetic
Which mysterious phenomena do scientists attribute to
dark energy? - ...ANSWER...✓✓-The increasing rate of
expansion of the Universe
Why can we NOT see back the whole way to the time the
Big Bang expansion began? - ...ANSWER...✓✓-The
radiation scatters off matter frequently so the Universe is
opaque
Astro 1 PSU Final Exam Prep Test Bank Latest 2025
With 430 Exam Practice Questions And Correct
Verified Answers/ PSU Astro 1 Exam Prep
Questions Bank/ Astronomy
Which is the smallest object? - ...ANSWER...✓✓-A neutron
star
A galaxy has an H-alpha emission line observed at a
wavelength 10 percent larger than the rest wavelength of
H-alpha. What is the redshift of the galaxy? -
...ANSWER...✓✓-0.1
What is in this image? - ...ANSWER...✓✓-Supernova
remnant
Which is the most luminous? - ...ANSWER...✓✓-Quasar
Which contains the most stars? - ...ANSWER...✓✓-A spiral
galaxy
,2|Page
Galaxy A appears twice the angular size of Galaxy B.
Assuming the two galaxies have the same physics size in
kiloparsecs, which of the following is true? -
...ANSWER...✓✓-Galaxy B is 2 times further away than
Galaxy A
What fundamental particles make a Helium-3 atom? -
...ANSWER...✓✓-5 up quarks, 4 down quarks, 2 electrons
What type of galaxy is in this image? - ...ANSWER...✓✓-
SBc
Which statement is FALSE? - ...ANSWER...✓✓-Planetary
nebulae usually have black holes at their centers
Which statement is TRUE? - ...ANSWER...✓✓-Stars form in
molecular clouds, where temperatures are about 10
degrees Kelvin
How tiny a spot is the Hubble Deep Field? -
...ANSWER...✓✓-The size of President Roosevelt's eye on
a dime held at arm's length
,3|Page
Among these choices, what is the last thing that happens
in the history of the Universe? - ...ANSWER...✓✓-
Electrons join with nuclei to make atoms
If a galaxy had no dark matter, we would observe ... -
...ANSWER...✓✓-The rotation velocity would decrease with
increasing distance like the Keplerian curve in our Solar
System
How many times bigger is the Local Group of galaxies in
which the Milky Way resides than the Milky Way itself? -
...ANSWER...✓✓-About 100 times bigger
Which one of the following is FALSE? - ...ANSWER...✓✓-
Galaxy collisions destroy most of the stars in the galaxies
involved
If a galaxy is moving away from us the wavelength of the
light it emits will be ... - ...ANSWER...✓✓-Increased
If light takes 4 billion years to reach us from a distant
galaxy, how many times farther away is the distant galaxy
than the Andromeda galaxy, which is 2 million
, 4|Page
light years away? - ...ANSWER...✓✓-2,000 times
The stars in the halo of our Milky Way Galaxy are -
...ANSWER...✓✓-Older and redder than those in the disk
The supermassive black hole in the center of the Milky
Way has a mass of - ...ANSWER...✓✓-4 million solar
masses
Which force has as its boson the photon? -
...ANSWER...✓✓-Electromagnetic
Which mysterious phenomena do scientists attribute to
dark energy? - ...ANSWER...✓✓-The increasing rate of
expansion of the Universe
Why can we NOT see back the whole way to the time the
Big Bang expansion began? - ...ANSWER...✓✓-The
radiation scatters off matter frequently so the Universe is
opaque
