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Chapter 6

Ryan Tram 15 questions 5.0 (2 ratings)

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Questions in this quiz (15)

  1. 1What is the spectral sequence in order of increasing temperature?
    1. AMKFAGBO
    2. BBAFGKMO
    3. CMKGFABO
    4. DABFMKGO
  2. 2Which of the following can we use to determine the surface temperature of a star?
    1. Adetermining if the star has a companion star
    2. Bstudying its line absorption spectrum
    3. Cmeasuring the star’s distance
    4. Dmeasuring the star’s parallax
  3. 3The table lists the spectral types for each of four stars. Which star in this table would have the lowest surface temperature?Image for question 3
    1. Aα For
    2. Bο Cet
    3. Cγ Tri
    4. Dξ Per
  4. 4The table lists the spectral types for each of four stars. Which star in this table would have the highest surface temperature?Image for question 4
    1. Aα For
    2. Ba
    3. Cγ Tri
    4. Dξ Per
  5. 5What properties of a star determine its luminosity?
    1. Adistance and diameter
    2. Btemperature and distance
    3. Ctemperature and diameter
    4. Dapparent magnitude and temperature
  6. 6How do we know that giant stars are larger in diameter than the Sun?
    1. AThey are more luminous but have about the same temperature
    2. BThey are less luminous but have about the same temperature
    3. CThey are hotter but have about the same luminosity
    4. DThey are cooler but have about the same luminosity
  7. 7Sirius A and B are two stars at the same distance from the Earth. In this binary system, Sirius A is much brighter but Sirius B is much hotter. From this information, what can you conclude about the two stars?
    1. ASirius B must be much smaller than Sirius A
    2. BSirius B must be much larger than Sirius A
    3. CSirius B must be much more massive than Sirius A
    4. DSirius B must be much less massive than Sirius A
  8. 8In a Hertzsprung-Russell diagram, where are the stars with the smallest radius found?
    1. Ain the upper left corner
    2. Bin the upper right corner
    3. Cin the lower left corner
    4. Din the lower right corner
  9. 9In a Hertzsprung-Russell diagram, where are 90 percent of all the stars found?
    1. Ain the giant region
    2. Bin the supergiant region
    3. Con the dwarf sequence
    4. Don the main sequence
  10. 10The star named Sheat is of spectral type M2 and luminosity class II. Based on this information, how does Sheat compare to the Sun?
    1. ASheat is cooler and larger than the Sun
    2. BSheat is cooler and smaller than the Sun
    3. CSheat is hotter and more luminous than the Sun
    4. DSheat is hotter and larger than the Sun

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Description
Astronomy
Author
Ryan Tram
Language
English
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576
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5.0 out of 5 · 2 ratings
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