Astronomy Exams.

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Astronomy Exams.
Astronomy quiz

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