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Astronomy Exams.

49 Questions  I  By Csulb_furreal
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1.  As a high-mass main-sequence star evolves off the main sequence, it follows a _______ on the HR diagram
A.
B.
C.
D.
2.  The collapse of the core of a high-mass star at the end of its life lasts approximately
A.
B.
C.
D.
3.  Neutron stars have masses that range from
A.
B.
C.
D.
4.  What produces a type-I supernova?
A.
B.
C.
D.
5.  One outstanding feature of globular clusters is their lack of ________ main sequence stars
A.
B.
C.
D.
6.  Which of the following are the Jovian planets?
A.
B.
C.
D.
E.
7.  What are small bodies in the solar system which travel about the Sun in highly eccentric orbits?
A.
B.
C.
D.
8.  If galaxy A is four times more distant than galaxy B, then according to the Hubble Law, galaxy A will recede __________ than galaxy B.
A.
B.
C.
D.
E.
9.  What characteristic of a star cluster is used to determine its age?
A.
B.
C.
D.
10.  Which of the following is inferred by Hubble's law?
A.
B.
C.
D.
11.  The event horizon of a black hole is defined as
A.
B.
C.
D.
12.  ________ is the result of mass distorting the fabric of spacetime.
A.
B.
C.
D.
13.  A star is considered to begin its main sequence life when
A.
B.
C.
D.
14.  Most planets thus far discovered around other stars were found by
A.
B.
C.
D.
15.  A brown dwarf is
A.
B.
C.
D.
E.
16.  Black holes that are stellar remnants can be found by searching for
A.
B.
C.
D.
17.  The Oot Cloud is believed to be
A.
B.
C.
D.
E.
18.  The Sun will at some time in the future become
A.
B.
C.
D.
19.  A Cepheid star varies in luminosity because
A.
B.
C.
D.
20.  Which planet by itself contains the majority of mass of all the planets?
A.
B.
C.
D.
E.
21.  What is a planetary nebula?
A.
B.
C.
D.
22.  Neutron stars do not have:
A.
B.
C.
23.  What temperature does COBE find the Big Bang has cooled to by now?
A.
B.
C.
D.
E.
24.  The density of a _________ is greater than the density of a ___________.
A.
B.
C.
D.
E.
25.  When the core of a star shrinks after hydrogen fusion stops,
A.
B.
C.
D.
26.  The large planetesimals would have grown faster than the smaller planetesimals because
A.
B.
C.
D.
E.
27.  If the theory that novae occur in close binary systems is correct, then novae should
A.
B.
C.
D.
28.  If we lived on a galaxy one billion light-years from our own, what would we see?
A.
B.
C.
D.
29.  Comets and asteroids are
A.
B.
C.
D.
30.  What event leads to the formation of a red giant?
A.
B.
C.
D.
E.
31.  The lowest mass object that can initiate thermonuclear fusion of hydrogen has a mass of about
A.
B.
C.
D.
E.
32.  What is Cygnus X-1?
A.
B.
C.
D.
E.
33.  Hubble's constant H0 , represents
A.
B.
C.
D.
34.  We can identify only a small fraction of all the pulsars that exist in our galaxy because
A.
B.
C.
D.
35.  A surface explosion on a white dwarf, caused by falling matter from the atmosphere of its binary companion, creates what kind of object?
A.
B.
C.
D.
36.  Neutron stars have ____________ magnetic fields.
A.
B.
C.
D.
37.  Which of the following is not a characteristic of the terrestrial planets?
A.
B.
C.
D.
E.
38.  Conservation of angular momentum states that as a cloud of interstellar gas and dust collapses, the velocity of the particles increases.
A.
B.
39.  If the Earth were to be condensed down in size until it became a black hole, its Schwarzschild radius would be
A.
B.
C.
D.
40.  The Helix and Ring nebulae are
A.
B.
C.
D.
41.  In A.D. 1054, Chinese astronomers observed the appearance of a new star, whose location is now occupied by
A.
B.
C.
D.
E.
42.  Because almost all galaxies show redshifted spectra, we know that
A.
B.
C.
D.
E.
43.  All Jovian planets have
A.
B.
C.
D.
E.
44.  Essentially all the elements heavier than iron in our galaxy were formed
A.
B.
C.
D.
45.  Homogeneity and isotropy, taken as assumptions regarding the structure and evolution of the universe, are known as
A.
B.
C.
D.
E.
46.  Open clusters contain mostly
A.
B.
C.
D.
47.  Degenerate refers to a state of matter at
A.
B.
C.
D.
48.  Which one supports the solar nebula theory of the origin of the solar system?
A.
B.
C.
D.
49.  Measured ages of globular clusters and a study of the time required for massive stars to build up the present abundance of heavy elements suggests that the universe is
A.
B.
C.
D.
E.
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