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Cards In This Set
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Rays appear to radiate from some of the lunar craters. What is the origin of these rays?
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Streaks of pulverized rock
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How do we know that the Moon causes ocean tides?
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Because the Moon-rise and the tide pattern repeat 50 minutes later every day
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What would explain the fact that maria are uncommon in the far side of the Moon?
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The crust on the far side is thicker than the near side, therefore molten rock could not break through
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Which of the following argues against the fission theory of the origin of the Moon?
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The Moon's orbit is near the ecliptic, not the equator
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Which of the following observations is consistent with the hypothesis that the Moon was created by collision?
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All of the choices are consistent
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Why do astronomers interpret the lack of impact cratering as evidence of a younger terrain?
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Because at the present rate of impacts, a newly formed surface will not suffer many htis
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Astronomers claim the features on Moon's surface are older than those observed on Earth b/c:
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The surface of the Earth is subject to water and wind erosion, which don't occur on the Moon
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Which of the following is at present the most widely accepted theory about the origin of the Moon?
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The Moon formed from material blasted out of the Earth during a collision with a planet-sized object
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The lunar _____ are smoother and younger than the _____.
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Maria; highlands
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The Moon's crust is composed of _______ rock.
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Silicate
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The lunar _____ are considerably more cratered than the _____.
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Highlands; maria
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The lunar craters originated from ______.
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Objects striking the surface
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The surface of the Moon is covered by a layer of _____ several meters thick.
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Regolith
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The crust of the Moon is _____ on the side facing the Earth.
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Thinner
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Which of the following is true of the terrestrial planets?
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All of the choices are correct
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