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A Brief History of the Universe
2 years ago by
craniumfire
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  • Question 1
    30 seconds
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    Q.

    In the beginning there was nothing... then there was ___

    answer choices

    light

    matter

    everything

    galaxies

  • Question 2
    30 seconds
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    Q.

    Cosmology is much like any other field of science; we have ___

    answer choices

    theology

    clues, observations and rules

    creation myths

    authority and blind trust

  • Question 3
    30 seconds
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    Q.

    In the past the Universe was ___

    answer choices

    denser, more crowded, and colder

    rarified, less crowded, and colder

    denser, more crowded, and hotter

    rarified, less crowded, and hotter

  • Question 4
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    Q.

    A lot of what we know about the early universe comes from experiments done in giant ___

    answer choices

    mass spectrometers

    infrared spectrometers

    bomb calorimeters

    particle colliders

  • Question 5
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    Q.

    When the Cosmos was very young, particles were whizzing around slamming into each other, creating ___

    answer choices

    energy

    baby universes

    other subatomic particles

    black holes

  • Question 6
    30 seconds
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    Q.

    When the universe got its start, it was unfathomably ___

    answer choices

    hot and desolate

    hot and dense

    cold and desolate

    cold and dense

  • Question 7
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    Q.

    If you take a snowball and heat it up, it'll melt. We call that a ___

    answer choices

    chemical reaction

    nuclear reaction

    chemical change

    phase change

  • Question 8
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    Q.

    When you heat something up, what you're doing is giving it more ___

    answer choices

    entropy

    light

    mass

    energy

  • Question 9
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    Q.

    The basic particles of normal matter, which can't be subdivided any more, are ___

    answer choices

    electrons, neutrons, and protons

    quarks and electrons

    neutrons and protons

    protons, electrons and quarks

  • Question 10
    30 seconds
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    Q.

    In the very early Universe the four basic forces we see today were all squeezed together into ___

    answer choices

    pure energy

    a single ball of matter

    one unified super force

    a single nuclear force

  • Question 11
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    Q.

    If we call the instant of the Big Bang "time zero", then our physics cannot describe what happens in the first ___

    answer choices

    10-43 seconds

    10-4 seconds

    10 seconds

    103 seconds

  • Question 12
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    Q.

    Three minutes after the Big Bang, the Universe cooled enough that the subatomic particles could ___

    answer choices

    freeze

    collide

    stick together

    disintegrate

  • Question 13
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    Q.

    20 minutes after the Big Bang, the Universe cooled enough that ___

    answer choices

    subatomic particles disintegrated

    subatomic particles stuck together

    fusion began

    fusion stopped

  • Question 14
    30 seconds
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    Q.

    The primordial ratio was similar to the Sun's elemental abundance, which is roughly ___

    answer choices

    5% hydrogen, 95% helium

    25% hydrogen, 75% helium

    75% hydrogen, 25% helium

    95% hydrogen, 5% helium

  • Question 15
    30 seconds
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    Q.

    Until the Universe was 380,000 years old, electrons couldn't bond with the atomic nuclei. The Universe was ___

    answer choices

    ionized

    atomized

    dissociated

    degenerate

  • Question 16
    30 seconds
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    Q.

    After 380 millennia, the Universe cooled enough to form stable neutral atoms. We call this moment ___

    answer choices

    assemblage

    unity

    recombination

    coalescence

  • Question 17
    30 seconds
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    Q.

    When the Universe was still ionized, prior to recombination, it was ___

    answer choices

    transparent

    opaque

    translucent

    reflective

  • Question 18
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    Q.

    After recombination, the light emitted by the neutral atoms is what we see today as ___

    answer choices

    the Milky Way Galaxy

    the Hubble Deep Field

    extremely luminous active galaxies

    the cosmic microwave background

  • Question 19
    30 seconds
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    Q.

    The background glow predicted by the Big Bang model has been on its journey to Earth for almost ___

    answer choices

    13.8 billion years

    31.8 billion years

    81.8 billion years

    318 billion years

  • Question 20
    30 seconds
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    Q.

    After recombination, matter in the early Universe was ___

    answer choices

    evenly distributed and had the same temperature

    evenly distributed and had varying temperature

    unevenly distributed and had the same temperature

    unevenly distributed and had varying temperature

  • Question 21
    30 seconds
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    Q.

    Theoretical physicist Alan Guth proposed an addition to the Big Bang model; a super expansion called ___

    answer choices

    escalation

    enhancement

    inflation

    distension

  • Question 22
    30 seconds
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    Q.

    The denser fluctuations in the background glow were seeds, where matter condensed into ___

    answer choices

    quarks

    black holes

    the first stars

    normal matter

  • Question 23
    30 seconds
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    Q.

    How long ago did our own galaxy start as a quantum fluctuation in space?

    answer choices

    1.38 million years ago

    13.8 million years ago

    1.38 billion years ago

    13.8 billion years ago

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