Quiz
Stars
3 years ago by
craniumfire
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  • Question 1
    30 seconds
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    Q. When you divide the incoming light from an object into individual colors or wavelengths it's called ___
    answer choices
    a time-series graph
    a spectrum
    a Fourier transform
    a histogram
  • Question 2
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    Q. Hot objects, that emit light at all wavelengths, are said to give off ___
    answer choices
    a fractured spectrum
    an extended spectrum
    a single line spectrum
    a continuous spectrum
  • Question 3
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    Q. The continuous spectrum of a star has gaps in it, darker bands where different elements ___
    answer choices
    absorb different colors
    reflect different colors
    transmit different colors
    refract different colors
  • Question 4
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    Q. In 1901, who developed a system to classify stars using many different absorption lines in their spectra?
    answer choices
    Marie Skłodowska Curie
    Rosalind Franklin
    Annie Jump Cannon
    Lise Meitner
  • Question 5
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    Q. Which physicist showed how objects emit light of different colors based on their temperature?
    answer choices
    Albert Einstein
    James Clerk Maxwell 
    Niels Bohr
    Max Planck
  • Question 6
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    Q. Hotter stars put out more light at the blue end of the spectrum, while cooler ones peak ___
    answer choices
    in the red
    in the yellow
    in the green
    in the violet
  • Question 7
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    Q. Cecelia Payne-Gaposchkin showed that the spectra of stars depended on their ___
    answer choices
    density and elements in their atmospheres
    temperature and elements in their atmospheres
    temperature and molecules in their atmospheres
    age and molecules in their atmospheres
  • Question 8
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    Q. Payne-Goposchkin showed that stars were overwhelmingly composed of ___
    answer choices
    hydrogen
    helium
    carbon
    oxygen
  • Question 9
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    Q. The classification scheme used today arranges stars by ___
    answer choices
    their size, assigning each a number
    their size, assigning each a letter
    their temperature, assigning each a number
    their temperature, assigning each a letter
  • Question 10
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    Q. The letters 'O', 'B', 'A', 'F', 'G', 'K' and 'M' arrange stars in order from ___
    answer choices
    hottest to coolest
    coolest to hottest
    largest to smallest
    smallest to largest
  • Question 11
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    Q. Which star, classified as an A0, is the brightest star in the night sky?
    answer choices
    Betelgeuse
    Sirius
    Vega
    Rigel
  • Question 12
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    Q. A star can actually emit more green light than any other color but we'll wind up seeing it as ___
    answer choices
    white
    red
    blue
    violet
  • Question 13
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    Q. If you look at the Sun's spectrum, it actually peaks ___
    answer choices
    in the red
    in the blue
    in the green
    in the yellow
  • Question 14
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    Q. The light from the Sun is white but some of the shorter wavelengths get scattered away by ___
    answer choices
    atoms of oxygen in the air
    atoms of argon in the air
    molecules of nitrogen in the air
    molecules of oxygen in the air
  • Question 15
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    Q. The total amount of energy emitted by a star is called its ___
    answer choices
    incandescence
    luminosity
    spectral integrity
    apparent brightness
  • Question 16
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    Q. The luminosity of a star depends on ___
    answer choices
    its size and temperature
    its age and density
    its size and distance from us
    its age and distance from us
  • Question 17
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    Q. A plot of a stars luminosity vs it's temperature is called ___
    answer choices
    an HR diagram, after Hertzsprung and Russell
    an HC diagram, after Hertzsprung and Cannon
    an CR diagram, after Cannon and Russell
    an HS diagram, after Hertzsprung and Saha 
  • Question 18
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    Q. The thick line, running diagonally down an HR diagram is called ___
    answer choices
    the general trend
    the main sequence
    the main trend
    the general sequence
  • Question 19
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    Q. Comparatively, as shown on an HR diagram, massive stars are ___
    answer choices
    hotter and more luminous
    cooler and more luminous
    hotter and less luminous
    cooler and less luminous
  • Question 20
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    Q. The stars on the lower left of an HR diagram are hot, blue/white but very faint, and are called ___
    answer choices
    white giants
    blue giants
    white dwarfs
    blue dwarfs
  • Question 21
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    Q. Most stars live the majority of their lives ___
    answer choices
    as white dwarfs
    along the main sequence
    as red giants
    as red super giants
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