ASTRO 7N FINAL EXAM 2025 WITH
ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
|FREQUENTLY TESTED QUESTIONS AND
SOLUTIONS |ALREADY GRADED
A+|NEWEST|LATEST UPDATE
|GUARANTEED PASS
what is the name of the slightly cooler layer of the sun just outside the photosphere
chromosphere
how does a star move on the H-R diagram during the period of time it is converting hydrogen to
helium in its core
it remains nearly fixed at a certain point on the main sequence and does not move on the H-R
diagram
if the entire mass of earth were concentrated in a region the size of a marble, the resulting
object would be
a black hole
what is the smallest object
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?
0.1
What is in this image?
1|Page
, supernova remnant
which is the most luminous
quasar
which contains the most stars
a spiral galaxy
galaxy A appears twice the angular size of galaxy B. Assuming the two galaxies have the same
physical size in kiloparsecs, which of the following is true?
Galaxy B is 2 times farther away than galaxy A
what fundamental particles make up a helium-3 atom?
5 up quarks, 4 down quarks, 2 electrons
in what box does the galaxy in the bottom center belong in this hubble tuning fork diagram?
SBb
which statement is false?
planetary nebulae usually have black holes at their centers
which statement is true?
stars form in molecular clouds, where temperatures are about 10 Kelvin
How tiny a spot is the hubble deep field?
The size of President Roosevelt's eye on a dime held at arm's length
among these choices, what is the last thing that happens in the history of the universe?
electrons join with nuclei to make atoms
if a galaxy had no dark matter, we would observe
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
about 100 times bigger
2|Page
ACTUAL CORRECT QUESTIONS AND
VERIFIED DETAILED ANSWERS
|FREQUENTLY TESTED QUESTIONS AND
SOLUTIONS |ALREADY GRADED
A+|NEWEST|LATEST UPDATE
|GUARANTEED PASS
what is the name of the slightly cooler layer of the sun just outside the photosphere
chromosphere
how does a star move on the H-R diagram during the period of time it is converting hydrogen to
helium in its core
it remains nearly fixed at a certain point on the main sequence and does not move on the H-R
diagram
if the entire mass of earth were concentrated in a region the size of a marble, the resulting
object would be
a black hole
what is the smallest object
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?
0.1
What is in this image?
1|Page
, supernova remnant
which is the most luminous
quasar
which contains the most stars
a spiral galaxy
galaxy A appears twice the angular size of galaxy B. Assuming the two galaxies have the same
physical size in kiloparsecs, which of the following is true?
Galaxy B is 2 times farther away than galaxy A
what fundamental particles make up a helium-3 atom?
5 up quarks, 4 down quarks, 2 electrons
in what box does the galaxy in the bottom center belong in this hubble tuning fork diagram?
SBb
which statement is false?
planetary nebulae usually have black holes at their centers
which statement is true?
stars form in molecular clouds, where temperatures are about 10 Kelvin
How tiny a spot is the hubble deep field?
The size of President Roosevelt's eye on a dime held at arm's length
among these choices, what is the last thing that happens in the history of the universe?
electrons join with nuclei to make atoms
if a galaxy had no dark matter, we would observe
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
about 100 times bigger
2|Page
