The Big Bang and Stars
2 hours ago
selotts_58424
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14 QuestionsShow answers
  • Question 1
    60 seconds
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    Q.

    Which piece of evidence supports the Big Bang theory?

    answer choices

    Galaxies are staying in the same places

    Galaxies are moving away from us

    Galaxies are moving towards us

    Galaxies all orbit the center of the universe

  • Question 2
    60 seconds
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    Q.

    About how long ago do scientists believe the universe began?

    answer choices

    13-14 billion years ago

    13-14 million years ago

    10-12 billion years ago

    12-13 million years ago

  • Question 3
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    Q. What were the original two elements in our universe?
    answer choices
    Lithium and Carbon
    Hydrogen and Neon
    Helium and Chlorine
    Hydrogen and Helium
  • Question 4
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    Q.

    How is a theory different from a guess? Choose the best answer.

    answer choices

    A theory cannot be disproven; a guess can be

    A theory is backed up by hard evidence; a guess is not

    A theory is agreed upon by scientists; a guess is only agreed on by laypeople

    A theory is usually very old; a guess is usually very new

  • Question 5
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    Q.

    What is one major piece of evidence that the Big Bang theory is correct?

    answer choices

    Astronomers have detected leftover radiation from the Big Bang

    Everything in the universe has remained in the same location for billions of years

    Astronomers have discovered that the universe is no longer expanding

    Astronomers have discovered evidence that the universe will soon begin contracting in a "Big Crunch"

  • Question 6
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    Q.

    All stars begin their life as a

    answer choices

    Main Sequence

    Nebula

    Protostar

    Black Dwarf

  • Question 7
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    Q. ______ is a force that causes dust particles to stick together in a nebula.
    answer choices
    nuclear fusion
    gravity
    hydrogen
    friction
  • Question 8
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    Q. A gigantic explosion that causes the death of a large star is called
    answer choices
    pulsar
    red giant 
    supernova
    black hole
  • Question 9
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    Q. A ________ is an object so dense with so much gravity that even light cannot escape.
    answer choices
    neutron star
    white dwarf
    blackhole
    black dwarf
  • Question 10
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    Q. A star at the stage in its life cycle when it stops burning hydrogen, begins burning helium, and expands to a large, low-density star.
    What stage in the life cycle does this describe? 
    answer choices
    Supernova
    Black Hole
    Main Sequence
    Red Giant or Red Supergiant
  • Question 11
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    Q. This is a young star that glows as gravity brings it together
    answer choices
    Nebula
    Protostar
    Main-sequence star
    Red giant
  • Question 12
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    Q. What is the name of the largest stars?
    answer choices
    Protostars
    Supergiants
    Red Giants
    Dwarf Stars
  • Question 13
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    Q.

    Which of the following correctly ranks astronomical objects by size, starting with the smallest?

    answer choices

    earth, sun, solar system, galaxy, universe

    sun, solar system, earth, universe, galaxy

    universe, galaxy, solar system, earth, sun

    solar system, earth, sun, universe, galaxy

  • Question 14
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    Q.

    Stars give off heat and light in a process called ___________.

    answer choices

    nuclear fusion

    supernova

    luminosity

    spectroscopy

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