Astronomy Test 4

34 Questions  I  By Brentzel on December 7, 2010

  
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1.  Which of the following statements about novae (plural of nova) is NOT true?
A.
B.
C.
D.
E.
2.  Which of the following is closest in size (radius) to a neutron star?
A.
B.
C.
D.
E.
3.  The last "ash" form nuclear burning in a high-mass star is 
A.
B.
C.
D.
4.  Which of the following statements comparing halo stars to our Sun is NOT true?
A.
B.
C.
D.
E.
5.  How does the interstellar medium affect our view of most of the Galaxy?
A.
B.
C.
D.
E.
6.  Compared with our Sun, most stars in the halo are
A.
B.
C.
D.
E.
7.  If our galaxy was a spherical system rather than a disk, how would the appearance of the night sky be different?
A.
B.
C.
D.
E.
8.  Where are most heavy elements (all elements other than hydrogen and helium) made?
A.
B.
C.
D.
E.
9.  Why is there an upper limit to the mass of a white dwarf?
A.
B.
C.
D.
E.
10.  A 10 solar mass main sequence star will produce which of the following remnants?
A.
B.
C.
D.
E.
11.  Which of the following is the closest in mass to a white dwarf?
A.
B.
C.
D.
E.
12.  Which of the following statements about black holes is NOT true?
A.
B.
C.
D.
E.
13.  Which of the following is the closest in size (radius) to a white dwarf?
A.
B.
C.
D.
E.
14.  The event horizon of a black hole is
A.
B.
C.
D.
E.
15.  Which of the following is true about the origin of the Milky Way Galaxy
A.
B.
C.
D.
E.
16.  What evidence supports the theory that there is a black hole at the center of our Galaxy? 
A.
B.
C.
D.
E.
17.  Why are we unlikely to find Earth-like planets around halo stars in the Galaxy?
A.
B.
C.
D.
E.
18.  How do we know that pulsars are neutron stars?
A.
B.
C.
D.
E.
19.  The material between the stars is called the
A.
B.
C.
D.
E.
20.  Suppose a white dwarf is gaining mass because of accretion in a binary system. What happens if the mass someday reaches the 1.4-solar-mass-limit?
A.
B.
C.
D.
E.
21.  What kind of objects lie in the halo of our Galaxy?
A.
B.
C.
D.
E.
22.  From an observational standpoint, what is a pulsar?
A.
B.
C.
D.
E.
23.  A high-mass star CANNOT produce which of the following?
A.
B.
C.
D.
E.
24.  Fill in the blank: The more massive a white dwarf, the ________. 
A.
B.
C.
D.
E.
25.  The helium fusion process results in the production of 
A.
B.
C.
D.
E.
26.  When the iron core in a star collapses it is transformed into
A.
B.
C.
D.
E.
27.  Where does most star formation occur in the Milk Way today?
A.
B.
C.
D.
E.
28.  Compared with stars in the disk, orbits of stars in the halo
A.
B.
C.
D.
E.
29.  Compared to the star it evolved from, a white dwarf is
A.
B.
C.
D.
E.
30.  Which of the following is NOT an indicator of recent star formation?
A.
B.
C.
D.
E.
31.  Which of the following stages of stellar evolution does a high-mass star NOT experience?
A.
B.
C.
D.
E.
32.  Which of the following statements about a white dwarf is NOT true?
A.
B.
C.
D.
E.
33.  What kind of objects lie in the disk of our Galaxy?
A.
B.
C.
D.
E.
34.  It is difficult to determine the properties of the Milky Way galaxy because 
A.
B.
C.
D.
E.
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