Universe
a year ago
jenniferemery
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20 QuestionsShow answers
  • Question 1
    30 seconds
    Q.

    When we see the Andromeda galaxy, we are seeing it as it was 2.3 million years ago. Why?

    answer choices

    it takes light that length of time to travel

    light travels really slow in outer space

    light travels faster than sound

    it is an ancient galaxy

  • Question 2
    30 seconds
    Q.

    Which does the existance of cosmic background radiation support?

    answer choices

    the Big Bang Theory

    the inflationary model

    critical density

    Hubble constant

  • Question 3
    30 seconds
    Q.

    which would cause the universe to collapse in on itself to make a closed universe?

    answer choices

    momentum of outward expanision

    force of gravity

    critical density

    Hubble constant

  • Question 4
    30 seconds
    Q.

    Our galaxy is called

    answer choices

    Centaurus A

    Andromeda

    the Milky Way

    Triangulum

  • Question 5
    30 seconds
    Q.

    Which type of galaxy is illustrated?

    answer choices

    spiral

    elliptical

    irregular

    it's not a galaxy

  • Question 6
    30 seconds
    Q.

    According to latest theories, the Big Bang happened

    answer choices

    3 million years ago

    about 13.8 billion years ago

    3 billion years ago

    4.5 billion years ago

  • Question 7
    30 seconds
    Q.

    What is the origin of the cosmic background radiation?

    answer choices

    it is a remnant of the Big Bng

    it is emitted by radio galaxies

    it is dark energy

    it is emitted by stars

  • Question 8
    30 seconds
    Q.

    In the Big Bang model, which describes a universe that will stop expanding and begin to contract?

    answer choices

    flat

    open

    closed

    elliptical

  • Question 9
    30 seconds
    Q.

    Our Sun is just one of many millions of stars in a froup of stars called a

    answer choices

    universe

    solar system

    cosmos

    galaxy

  • Question 10
    30 seconds
    Q.

    What was in part of the Milky Way prior to 4.6 billion years ago?

    answer choices

    nothing

    a cloud of dust and gas

    other planets

    a supernova star

  • Question 11
    30 seconds
    Q.

    The light from most distant galaxies is ____.

    answer choices

    always infrared

    shifted toward the red end of the spectrum

    always ultraviolet

    shifted towards the blue end of the spectrum

  • Question 12
    30 seconds
    Q.

    Which galaxy shape is not a part of Hubble's classification system?

    answer choices

    spherical

    spiral

    elliptical

    irregular

  • Question 13
    30 seconds
    Q.

    the study of cosmology is concerned with

    answer choices

    the nature of the universe

    the origin of the universe

    the evolution of the universe

    all of these

  • Question 14
    30 seconds
    Q.

    the Milky Way contains a large central bulge made up mostly of

    answer choices

    young stars

    old red stars

    dust and gas

    remnants of supernovas

  • Question 15
    30 seconds
    Q.

    Which scientist was the first to find evidence that the universe is expanding

    answer choices

    Albert Einstein

    Galileo Galilei

    Edwin Hubble

    Stephen Hawking

  • Question 16
    30 seconds
    Q.

    At what time point in the Universe's history did all the forces in nature appear along with particles, neutrons, protons, and electrons?

    answer choices

    One second after the Big Bang

    Three minutes after the Big Bang

    500,000 years after the Big Bang

    1 million years after the Big Bang

  • Question 17
    30 seconds
    Q.

    Edwin Hubble's discoveries were so important that he had something named after him.

    What was it?

    answer choices

    The Hubble bridge

    The Hubble satellite

    The Hubble space orbiter

    The Hubble space telescope

  • Question 18
    30 seconds
    Q.

    Because light takes time to travel through space, we see objects as they were when the light was given out, not as they are now.

    answer choices

    True

    False

  • Question 19
    30 seconds
    Q.

    The unit of length that astronomers use is the

    answer choices

    light year

    meter

    mile

    kilometer

  • Question 20
    30 seconds
    Q.

    Our universe is made up of at least a

    answer choices

    million galaxies

    million stars

    billion galaxies

    hundred planets

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