LATEST UPDATE ASTRO 7N FINAL EXAM WITH 100%
CORRECT AND VERIFIED ANSWERS
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
In the p-p chain, shown in the above diagram, what particles must be
input in order to produce one 4HE nucleus? - ANSWER-6 protons, but 2
of them are returned when the 4 HE is produced
What is the name of the slightly cooler layer of the sun just outside the
photosphere - ANSWER-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 - ANSWER-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 - ANSWER-a black hole
What 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
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? - ANSWER-Galaxy B is 2 times farther away than galaxy A
What fundamental particles make up a helium-3 atom? - ANSWER-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? - ANSWER-sbb
CORRECT AND VERIFIED ANSWERS
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
In the p-p chain, shown in the above diagram, what particles must be
input in order to produce one 4HE nucleus? - ANSWER-6 protons, but 2
of them are returned when the 4 HE is produced
What is the name of the slightly cooler layer of the sun just outside the
photosphere - ANSWER-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 - ANSWER-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 - ANSWER-a black hole
What 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
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? - ANSWER-Galaxy B is 2 times farther away than galaxy A
What fundamental particles make up a helium-3 atom? - ANSWER-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? - ANSWER-sbb
