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Astronomy Chapter Eleven

19 Questions  I  By Moonshark13
Astronomy Chapter Eleven

  
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1.  Which of the following terms is given to a pair of stars that appear to change positions in the sky, indicating that they are orbiting one another?
A.
B.
C.
D.
E.
2.  Which of the following is true about low-mass stars compared to high-mass stars?
A.
B.
C.
D.
E.
3.  The spectral sequence in order of decreasing temperature is
A.
B.
C.
D.
E.
4.  What are the standard units for luminosity?
A.
B.
C.
D.
E.
5.  Which of the following statements about an open cluster is true?
A.
B.
C.
D.
E.
6.  A star's luminosity is the
A.
B.
C.
D.
E.
7.  Since all stars begin their lives with the same basic composition, what characteristic most determines how they will differ?
A.
B.
C.
D.
E.
8.  Which of the following luminosity classes refers to stars on the main sequence?
A.
B.
C.
D.
E.
9.  Which of the following best describes the axes of a Hertzsprung-Russell (H-R) diagram?
A.
B.
C.
D.
E.
10.  The spectral sequence sorts stars according to
A.
B.
C.
D.
E.
11.  On a Hertzsprung-Russell diagram, where would we find stars that are cool and luminous?
A.
B.
C.
D.
12.  On a Hertzsprung-Russell diagram, where would we find white dwarfs?
A.
B.
C.
D.
13.  Cluster ages can be determined from
A.
B.
C.
D.
E.
14.  Which of the following correctly states the luminosity-distance formula?
A.
B.
C.
D.
15.  Suppose you measure the parallax angle for a particular star to be 0.1 arcsecond. Thedistance to this star is
A.
B.
C.
D.
E.
16.  On a Hertzsprung-Russell diagram, where would we find red giant stars?
A.
B.
C.
D.
17.  On a Hertzsprung-Russell diagram, where would we find stars that have the largest radii?
A.
B.
C.
D.
18.  If the distance between us and a star is doubled, with everything else remaining the same,the luminosity
A.
B.
C.
D.
E.
19.  On a Hertzsprung-Russell diagram, where would we find stars that are cool and dim?
A.
B.
C.
D.
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