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5 Written questions

5 Matching questions

  1. hertzsprung-russel diagram
  2. apparent magnitude
  3. wavelenghth
  4. reflecting and refracting telescopes
  5. types of galaxies
  1. a 1. spiral
    2. elliptical
    3. irregular
  2. b the actual brightness of stars increases as the surface temperature increases
  3. c collects and focuses visible light
  4. d the brightness of a star as it appears from Earth
  5. e the length from crest to crest in a wave

5 Multiple choice questions

  1. the rainbow that you see when looking at a spectroscope
  2. the theory that the universe will continue to expand
  3. one star appears dim and then brightens in a regular cycle
  4. you classify a star on how big ,how hot, and what color it is
  5. causes hydrogen atoms to come together to become helium atoms

5 True/False questions

  1. electromagnetic spectrumthe rainbow that you see when looking at a spectroscope


  2. spectroscopean instrument that splits light into colors


  3. nebulaapparent change in the position of a star in the sky. Not because it has moved but because the Earths change in position as it moves around the sun.


  4. color of stars and their temperaturethe color of a star depends on its temperature, the hottest one are blueish white, the coolest stars are reddish orange medium stars are yellow


  5. composition of stars1. spiral
    2. elliptical
    3. irregular


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