Astronomy Exams.

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 Astronomy Exams.
Astronomy quiz

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