Astronomy Exams.

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Astronomy Exams.
Astronomy quiz

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