Space Science
2 years ago
mbarnardfhs
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15 QuestionsShow answers
  • Question 1
    30 seconds
    Q.

    In a diagram depicting the solar system as heliocentric, what is located at the center?

    answer choices

    Earth

    the sun

    the moon

    Mars

  • Question 2
    30 seconds
    Q.

    The orbit of a planet around the sun is a(an)

    answer choices

    ellipse.

    straight line.

    circle.

    parabola.

  • Question 3
    30 seconds
    Q.

    Which of the following helps explain why the planets remain in motion around the sun?

    answer choices

    density

    gravity

    inertia

    Both gravity and inertia

  • Question 4
    30 seconds
    Q.

    Which of the following objects does NOT orbit directly around the sun?

    answer choices

    planets

    comets

    moons

    all of the above

  • Question 5
    30 seconds
    Q.

    The moon most likely formed

    answer choices

    from a collision of Earth with a Mars-sized object.

    in another region of space and drifted toward Earth.

    from material in the solar system that came together.

    in the same way as Earth was formed.

  • Question 6
    30 seconds
    Q.

    Ocean tides are the result of

    answer choices

    the rotation of Earth.

    the sun’s gravitational pull on Earth.

    changes in Earth’s orbital position around the sun.

    differences in both the sun’s and moon’s gravitational pull on Earth.

  • Question 7
    30 seconds
    Q.

    Study Figure 25-1. Suppose you are an astronaut on the side of the moon facing Earth during a total lunar eclipse. Which would you see as you look toward Earth?

    answer choices

    Earth illuminated by reflected moonlight.

    The normal view; there is always reflected light from the moon’s surface.

    You could not see the sun because Earth blocks its light.

    The light from the sun behind Earth would be blinding.

  • Question 8
    30 seconds
    Q.

    What will happen to the relative amounts of hydrogen and helium in the sun over the next few billion years?

    answer choices

    Hydrogen will increase and helium will decrease.

    Hydrogen will decrease and helium will increase.

    Both hydrogen and helium will decrease.

    Both hydrogen and helium will remain the same.

  • Question 9
    30 seconds
    Q.

    The distance between stars is typically measured in

    answer choices

    light-years

    liometers

    astronomical units

    miles

  • Question 10
    30 seconds
    Q.

    The parallax of a star is observed because

    answer choices

    all stars have the same apparent brightness.

    parallax increases with distance.

    stars do not move.

    the observer moves.

  • Question 11
    30 seconds
    Q.

    Astronomers classify stars according to their

    answer choices

    distance from Earth.

    color, size, and absolute brightness.

    age and parallax.

    all of the above

  • Question 12
    30 seconds
    Q.

    The apparent brightness of a star

    answer choices

    varies with the position from which it is viewed.

    can be calculated from its absolute brightness and mass.

    is greater as distance from the sun increases.

    is a measure of its light viewed from any position.

  • Question 13
    30 seconds
    Q.

    The big bang theory explains the

    answer choices

    origin of the universe.

    life cycle of a star.

    Doppler effect.

    arrangement of constellations.

  • Question 14
    30 seconds
    Q.

    Which of the following provides support for the big bang theory?

    answer choices

    red shift

    cosmic microwave background radiation

    elliptical galaxies

    both red shift and cosmic microwave radiation

  • Question 15
    30 seconds
    Q.

    The gravitational force between two objects increases as mass

    answer choices

    decreases or distance decreases.

    decreases or distance increases.

    increases or distance decreases.

    increases or distance increases.

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