Astro 001 Exam 4 UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Galaxy A receding from Galaxy B at a velocity of 7500 km/s, from the perspective of
Galaxy B. Hubble's Law says that V=H0 x D.
About how far is Galaxy A from Galaxy B? Use
a value of 75 km/s/Mpc for Hubble's constant.
A) 5000 Mpc
B) 500,000 Mpc
C) 50000 Mpc
D) 100 Mpc
E) 1000 Mpc - CORRECT ANSWER D) 100 Mpc
Which is the smallest?
A) The distance from the Sun to the Andromeda Galaxy
B) The distance from the Sun to the Virgo cluster of galaxies
C) The distance from the Sun to the center of the Milky Way Galaxy
D) The Solar System.
E) The distance from the Sun to its nearest neighboring star - CORRECT ANSWER D)
The Solar System
A quasar in a galaxy that is merging with another galaxy would be
A) the source of a gamma ray burst.
B) less luminous because of the loss of material to tidal debris during the merger.
C) more luminous because of a greater supply of fuel.
D) destroyed in the process of the merger.
E) the source of a Type Ia supernova explosion. - CORRECT ANSWER C) more
luminous because of a greater supply of fuel.
,Which one of the following is TRUE?
A) Most elliptical galaxies contain only young stars.
B) Most galaxies appear to be approaching the Milky Way Galaxy.
C) Irregular galaxies rarely have star formation taking place in them.
D) Smaller galaxies called dwarf galaxies tend to be found around larger galaxies like the
Milky Way.
E) Galaxy collisions destroy most of the stars in the galaxies involved. - CORRECT
ANSWER D) Smaller galaxies called dwarf galaxies tend to be found around larger
galaxies like the Milky Way.
Which constellation is this?
A) Andromeda, the Princess
B) Pegasus, the Winged Horse
C) Orion, the Hunter
D) Cepheus, the King
E) Draco, the Dragon - CORRECT ANSWER D) Cepheus, the King
Which constellation is this?
A) Andromeda, the Princess
B) Pegasus, the Winged Horse
C) Orion, the Hunter
D) Cepheus, the King
E) Draco, the Dragon - CORRECT ANSWER B) Pegasus, the Winged Horse
Which constellation is this?
A) Andromeda, the Princess
B) Pegasus, the Winged Horse
C) Orion, the Hunter
D) Cepheus, the King
E) Draco, the Dragon - CORRECT ANSWER E) Draco, the Dragon
,Which constellation is this?
A) Andromeda, the Princess
B) Pegasus, the Winged Horse
C) Orion, the Hunter
D) Cepheus, the King
E) Draco, the Dragon - CORRECT ANSWER A) Andromeda, the Princess
Which statement about spiral galaxies is FALSE?
A) most of their star formation occurs in the spiral arms
B) their disks rotate at more than 100 kilometers per second
C) a type "c" spiral has tight, smooth arms
D) a type "a" spiral has a large bulge compared to a type "c" spiral
E) a merger of two spiral galaxies may give rise to an elliptical galaxy - CORRECT
ANSWER C) a type "c" spiral has tight, smooth arms
Which of the following makes a meson?
A) an up quark and an anti-down quark
B) three up quarks
C) a charm quark and a strange quark
D) two down quarks and an anti-up quark
E) a photon and a graviton - CORRECT ANSWER A) an up quark and an anti-down
quark
About how many dots are seen in the Hubble Deep Field image, just within that image? What
are the dots seen in the Hubble Deep Field?
A) 100 galaxies.
B) 3 million galaxies.
C) 3000 galaxies.
D) 3 million stars.
, E) 3000 stars. - CORRECT ANSWER C) 3000 galaxies
Which of the following statements is FALSE?
A) In our universe, at earlier times, everything was closer together.
B) The universe is expanding.
C) For an observer located in a galaxy all other distant galaxies would appear to move away
from his.
D) The universe looks the same in all directions; i.e. it is homogeneous and isotropic.
E) We are at the center of the universe. - CORRECT ANSWER E) We are at the center
of the universe.
What do quasars look like?
A) Large concentrations of dark matter.
B) Planetary nebulae
C) Fuzzy, extended patches of light.
D) Individual stars in the Milky Way.
E) Glowing gas clouds - CORRECT ANSWER D) Individual stars in the Milky Way.
Which of the following is TRUE?
A) The center of the universe is located at a point about 200 Mpc from us in the center of a
cluster of galaxies.
B) At the time that the Big Bang expansion began, all matter and energy in our observable
universe was compressed into a single point of space.
C) It is possible for galaxies that are very distant to actually move through space at a speed
several times the speed of light.
D) A redshift occurs when a photon loses energy and slows down as it moves through space.
E) We measure a redshift for roughly half of the galaxies that we observe, and for the others
we measure a blueshift. - CORRECT ANSWER B) At the time that the Big Bang
expansion began, all matter and energy in our observable universe was compressed into a
single point of space.
QUESTIONS AND CORRECT ANSWERS
Galaxy A receding from Galaxy B at a velocity of 7500 km/s, from the perspective of
Galaxy B. Hubble's Law says that V=H0 x D.
About how far is Galaxy A from Galaxy B? Use
a value of 75 km/s/Mpc for Hubble's constant.
A) 5000 Mpc
B) 500,000 Mpc
C) 50000 Mpc
D) 100 Mpc
E) 1000 Mpc - CORRECT ANSWER D) 100 Mpc
Which is the smallest?
A) The distance from the Sun to the Andromeda Galaxy
B) The distance from the Sun to the Virgo cluster of galaxies
C) The distance from the Sun to the center of the Milky Way Galaxy
D) The Solar System.
E) The distance from the Sun to its nearest neighboring star - CORRECT ANSWER D)
The Solar System
A quasar in a galaxy that is merging with another galaxy would be
A) the source of a gamma ray burst.
B) less luminous because of the loss of material to tidal debris during the merger.
C) more luminous because of a greater supply of fuel.
D) destroyed in the process of the merger.
E) the source of a Type Ia supernova explosion. - CORRECT ANSWER C) more
luminous because of a greater supply of fuel.
,Which one of the following is TRUE?
A) Most elliptical galaxies contain only young stars.
B) Most galaxies appear to be approaching the Milky Way Galaxy.
C) Irregular galaxies rarely have star formation taking place in them.
D) Smaller galaxies called dwarf galaxies tend to be found around larger galaxies like the
Milky Way.
E) Galaxy collisions destroy most of the stars in the galaxies involved. - CORRECT
ANSWER D) Smaller galaxies called dwarf galaxies tend to be found around larger
galaxies like the Milky Way.
Which constellation is this?
A) Andromeda, the Princess
B) Pegasus, the Winged Horse
C) Orion, the Hunter
D) Cepheus, the King
E) Draco, the Dragon - CORRECT ANSWER D) Cepheus, the King
Which constellation is this?
A) Andromeda, the Princess
B) Pegasus, the Winged Horse
C) Orion, the Hunter
D) Cepheus, the King
E) Draco, the Dragon - CORRECT ANSWER B) Pegasus, the Winged Horse
Which constellation is this?
A) Andromeda, the Princess
B) Pegasus, the Winged Horse
C) Orion, the Hunter
D) Cepheus, the King
E) Draco, the Dragon - CORRECT ANSWER E) Draco, the Dragon
,Which constellation is this?
A) Andromeda, the Princess
B) Pegasus, the Winged Horse
C) Orion, the Hunter
D) Cepheus, the King
E) Draco, the Dragon - CORRECT ANSWER A) Andromeda, the Princess
Which statement about spiral galaxies is FALSE?
A) most of their star formation occurs in the spiral arms
B) their disks rotate at more than 100 kilometers per second
C) a type "c" spiral has tight, smooth arms
D) a type "a" spiral has a large bulge compared to a type "c" spiral
E) a merger of two spiral galaxies may give rise to an elliptical galaxy - CORRECT
ANSWER C) a type "c" spiral has tight, smooth arms
Which of the following makes a meson?
A) an up quark and an anti-down quark
B) three up quarks
C) a charm quark and a strange quark
D) two down quarks and an anti-up quark
E) a photon and a graviton - CORRECT ANSWER A) an up quark and an anti-down
quark
About how many dots are seen in the Hubble Deep Field image, just within that image? What
are the dots seen in the Hubble Deep Field?
A) 100 galaxies.
B) 3 million galaxies.
C) 3000 galaxies.
D) 3 million stars.
, E) 3000 stars. - CORRECT ANSWER C) 3000 galaxies
Which of the following statements is FALSE?
A) In our universe, at earlier times, everything was closer together.
B) The universe is expanding.
C) For an observer located in a galaxy all other distant galaxies would appear to move away
from his.
D) The universe looks the same in all directions; i.e. it is homogeneous and isotropic.
E) We are at the center of the universe. - CORRECT ANSWER E) We are at the center
of the universe.
What do quasars look like?
A) Large concentrations of dark matter.
B) Planetary nebulae
C) Fuzzy, extended patches of light.
D) Individual stars in the Milky Way.
E) Glowing gas clouds - CORRECT ANSWER D) Individual stars in the Milky Way.
Which of the following is TRUE?
A) The center of the universe is located at a point about 200 Mpc from us in the center of a
cluster of galaxies.
B) At the time that the Big Bang expansion began, all matter and energy in our observable
universe was compressed into a single point of space.
C) It is possible for galaxies that are very distant to actually move through space at a speed
several times the speed of light.
D) A redshift occurs when a photon loses energy and slows down as it moves through space.
E) We measure a redshift for roughly half of the galaxies that we observe, and for the others
we measure a blueshift. - CORRECT ANSWER B) At the time that the Big Bang
expansion began, all matter and energy in our observable universe was compressed into a
single point of space.
