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The Big Bang Theory - Vocabulary

Quiz by Leanne Hagen

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17 questions
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  • Q1
    the gas that stars are made of; stars gradually lose hydrogen throughout their lives as it becomes helium through nuclear fusion.
    hydrogen
    30s
  • Q2
    Travels light speed in a vacuum and includes radio, microwave, infrared, visible light, ultraviolet, X-rays, and gamma rays.
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    Electromagnetic Radiation
    30s
  • Q3
    the observed spectrum from stars appears shifted toward the red end of the spectrum; evidence that the universe is expanding;
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    red shift
    30s
  • Q4
    a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
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    galaxy
    30s
  • Q5
    A self-luminous celestial object (makes its own light).
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    star
    30s
  • Q6
    all of space and everything in it
    universe
    30s
  • Q7
    See image
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    spiral galaxy
    30s
  • Q8
    See image
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    elliptical galaxy
    30s
  • Q9
    See image
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    irregular galaxy
    30s
  • Q10
    where stars are born; a gigantic cloud of gas and dust
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    nebula
    30s
  • Q11
    the hottest stars
    blue-white stars
    30s
  • Q12
    the coolest stars
    red stars
    30s
  • Q13
    leftover radiation from the big bang; supports the idea that the universe began with a period of rapid expansion.
    cosmic microwave background
    30s
  • Q14
    the process by which hydrogen atoms join together to form helium, releasing energy from stars
    nuclear fusion
    30s
  • Q15
    have less hydrogen because they have used it all up.
    older stars
    30s

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