Astronomy Exams.

49 Questions  I  By Csulb_furreal
Astronomy quiz

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