Astronomy Exams.

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 Astronomy Exams.
Astronomy quiz

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