Solar System Ch. 19 Terms – Flashcards
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Why does a spinning cloud spin faster as it collapses?
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Angular momentum conservation
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How does a protostar become hot enough for fusion to occur?
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Friction in the inner accretion disk
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How do protoplanets form in the protodisk?
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Accretion of planetesimals
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How many Earths does it take to stretch across Jupiter?
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11
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Which planet has the greatest radius?
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Jupiter
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Which planet orbits between Venus and Mars?
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Earth
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Rank the Jovian planets in order of distance from the sun, closest first: Jupiter, Neptune, Saturn, Uranus.
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Closest: Jupiter Saturn Uranus Farthest: Neptune
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Rank the Jovian planets in order of size, largest first: Jupiter, Neptune, Saturn, Uranus.
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Largest: Jupiter Saturn Uranus Smallest: Neptune
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Rank the following groups of objects in order of distance from the sun, closest first: asteroid belt, Jovian planets, Kuiper belt, terrestrial planets.
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Closest: Terrestrial Planets Asteroid Belt Jovial Planets Farthest: Kuniper Belt
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Rank the terrestrial planets in order of distance from the sun, closest first: Earth, Mercury, Mars, Venus.
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Closest: Mercury Venus Earth Farthest: Mars
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Rank the terrestrial planets in order of size, largest first: Earth, Mercury, Mars, Venus.
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Largest: Earth Venus Mars Smallest: Mercury
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Rank the terrestrial planets in order of density, most dense first: Earth, Mercury, Mars, Venus.
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Most Dense: Earth Mercury Venus Least Dense: Mars
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What produced the iron in Earth's core?
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some nuclear fusion in a massive star's core, mostly supernovae
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What produced the gold and silver in Earth's crust?
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supernovae
