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20 Cards in this Set
- Front
- Back
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Cloud of dust and what begins rotating?
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gas
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the speed of what increases
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rotation
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what happen to the center of the disk in our solar system
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begins to flatten out
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what happens to matter in the center
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it becomes more concentrated
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what eventually forms in the center
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the sun
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what was in process when growth of planets began
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planetesimals
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What happens during colliding matter
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small irregularly shaped bodies
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almost all of the mass of the solar system is within the what
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sun
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is it true or false that the father a planet is from the sun, the shorter its period of revolution
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false
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what is the main difference between the terrestrial and Jovian planets
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size, density, chemical makeup, and rate of rotation
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What are the Jovian planets
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Saturn,Uranus, Neptune, and Jupiter
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what are the terrestrial planets
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venus, Mercury, and Mars
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Is Pluto a Jovian planet or a terrestrial planet?
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neither
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What planets are relatively small and rocky
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terrestrial
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is it true or false that the Jovian planets are huge, rocky giants
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false
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what are the groups of substances that make up the planets
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gases, rocks, and ices
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To escape from a planet's gravity, an object must reach a speed called the
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escape velocity
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what is the comparative size of terrestrial planets
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relatively small. Diameter of Earth 1/4.
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What is the comparative size of the Jovian planets
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"giants" because of their distant locations from the sun
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What is the Density (compared to water) of terrestrial planets
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averages about 5 times the density of water
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