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Stars

Quiz by Shari Lord

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27 questions
Show answers
  • Q1
    Celestial bodies can be calssified based on their sizes. Which of the following is the smallest?
    planet
    red supergiant
    blue supergiant
    red giant
    30s
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  • Q2
    One way to compare the objects in space is by their relative sizes. Which of the following correctly lists the objects in space in order from largest to smallest.
    galaxy, universe, planet, star
    universe, galaxy, planet, star
    universe, galaxy, star, planet
    galaxy, universe, star, planet
    30s
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  • Q3
    If a star is 300 light-years from Earth, how long does it take light from the star to reach Earth?
    300 days
    300 years
    300 hours
    300 light-years
    30s
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  • Q4
    A scientist finds a star that is located far from Earth. Upon closer examination, she discovers that the star appears to have several smaller bodies orbiting it. Which of these terms would the scientist use to describe her findings?
    a solar system
    a planet
    a moon
    a galaxy
    30s
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  • Q5
    What is the term for sum of all space, matter, and energy that exist, that have existed in the past, and that will exist in the future?
    the solar system
    the stars
    the galaxy
    the universe
    30s
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  • Q6
    Which of the following terms is used to describe several planets orbiting a star?
    solar system
    galaxy
    universe
    constellation
    30s
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  • Q7
    Astronomers use the light-year to describe the relationship between objects in space. For example, the Andromeda galaxy is 2.5 million light-years from Earth. Which of the following units is most similar to the light-year
    degrees Celsius
    kilometer
    gram
    second
    30s
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  • Q8
    A galaxy contains stars, gas, and dust. This matter must be held together or the galaxy will break apart. What is responsible for holding the stars, gas, and dust together in a galaxy?
    gravity
    light
    heat
    friction
    30s
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  • Q9
    The sun is much larger than the moon. However, as viewed from Earth, the sun and moon appear to be the same size. Why do the sun and moon appear to be the same size when viewed from Earth?
    moon is much brighter than the sun
    moon is much hotter than the sun
    moon is much denser than the sun
    moon is much closer to Earth than the sun.
    30s
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  • Q10
    An astronomer uses a telescope to observe a star. She observes that the color of this star is similar to the color of the sun. Therefore, she infers that the star and sun have similar sizes and surface temperatures. Using this information, what can the astronomer conclude about the star?
    star is medium in size
    star is hotter than most other stars in galaxy
    star is brighter than most other stars in galaxy
    star is a white dwarf
    30s
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  • Q11
    One way to compare the object of space is by their relative size. Which of the following is larger than a galaxy?
    star
    universe
    planet
    solar system
    30s
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  • Q12
    If a star is 3 light-years from Earth, how long does it take light from that star to reach Earth?
    3 minutes
    3 light-years
    3 years
    3 hours
    30s
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  • Q13
    Which of the following is part of the universe?
    all existing matter
    all existing space
    all existing energy
    all existing energy, matter, and space
    30s
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  • Q14
    While planets are smaller than stars, planets are generally larger than which of the following?
    solar system
    stars they orbit around
    other bodies in the solar system
    galaxy they are contained within
    30s
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  • Q15
    How do galaxies range in size?
    from dwarf galaxies with approximately 100 million stars to giant galaxies with approximately 1 trillion stars
    from the smallest speck of dust to infinity
    from as small as the Milky Way to as large as the universe
    as large as the distance from Earth to the sun and back
    30s
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  • Q16
    Earth's sun and the objects that orbit it are part of a larger group of gas, dust, stars, and other space objects called the Milky Way. What is the Milky Way?
    constellation
    solar system
    void
    galaxy
    30s
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  • Q17
    A star system called HD 188753 contains Stars B and C, which are binary stars that orbit around each other and in turn orbit around star A. What kind of system is this?
    binary star system
    triple star system
    quadruple star system
    single star system
    30s
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  • Q18
    Which of the following statements best describes a binary star system?
    star appears blue in the night sky
    two stars orbit each other
    star is orbited by a gas giant planet
    two pairs of stars orbit each other
    30s
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  • Q19
    OF the following four stars, which should Ashni label as the hottest?
    Ceti, yellow
    Cygni, orange
    Vega, blue-white
    Wolf, red
    30s
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  • Q20
    What type of star is the sun?
    high-mass star
    supergiant
    low-mass star
    neutron star
    30s
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