ASTRO 001 Exam 3 Sample Test Questions and
Verified Answers
1. A large luminosity star
a) is always at a larger distance than a small luminosity star
b) emits more light than a low luminosity star
c) is always redder than a star with a small luminosity
d) is at a lower temperature than a small luminosity star
e) is always at a smaller distance than a small luminosity star Correct Answer: 1b
b) emits more light than a low luminosity star
2. If a red giant appears the same brightness as a red main sequence star, which one is further away?
a) the red giant
b) we can't tell
c) it depends on the phase of the Moon
d) the main sequence star
e) they are at the same distance Correct Answer: 2a
a) the red giant
3. The heaviest nuclei of all are formed
a) during helium burning
b) as part of the p-p chain
, c) during carbon burning
d) during a supernova explosion
e) during all stages of stellar evolution of massive stars Correct Answer: 3d
d) during a supernova explosion
4. Fill in the blank in the following chemical reaction that occurs in the
Sun: Hydrogen-2 + proton = ?? + energy:
a) Hydrogen-2
b) Hydrogen-1
c) Helium-3
d) Carbon-12
e) Helium-4 Correct Answer: 4c
c) Helium-3
5. Which of the following has the smallest radius?
a) type A main sequence star
b) main sequence star with surface temperature 8000K
c) type K main sequence star
d) white dwarf
e) neutron star Correct Answer: 5e
e) neutron star
6. Why does the main sequence part of a star's life end?
Verified Answers
1. A large luminosity star
a) is always at a larger distance than a small luminosity star
b) emits more light than a low luminosity star
c) is always redder than a star with a small luminosity
d) is at a lower temperature than a small luminosity star
e) is always at a smaller distance than a small luminosity star Correct Answer: 1b
b) emits more light than a low luminosity star
2. If a red giant appears the same brightness as a red main sequence star, which one is further away?
a) the red giant
b) we can't tell
c) it depends on the phase of the Moon
d) the main sequence star
e) they are at the same distance Correct Answer: 2a
a) the red giant
3. The heaviest nuclei of all are formed
a) during helium burning
b) as part of the p-p chain
, c) during carbon burning
d) during a supernova explosion
e) during all stages of stellar evolution of massive stars Correct Answer: 3d
d) during a supernova explosion
4. Fill in the blank in the following chemical reaction that occurs in the
Sun: Hydrogen-2 + proton = ?? + energy:
a) Hydrogen-2
b) Hydrogen-1
c) Helium-3
d) Carbon-12
e) Helium-4 Correct Answer: 4c
c) Helium-3
5. Which of the following has the smallest radius?
a) type A main sequence star
b) main sequence star with surface temperature 8000K
c) type K main sequence star
d) white dwarf
e) neutron star Correct Answer: 5e
e) neutron star
6. Why does the main sequence part of a star's life end?
