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Astronomy Exams.

49 Questions  I  By Csulb_furreal
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Astronomy Exams.
Astronomy quiz

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