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7 Cards in this Set
- Front
- Back
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What is the rate at which velocity changes with time?
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Acceleration
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The point at which a planet moves most slowly when it is farthest from the sun is known as what?
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Aphelion
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The unit of length, used by astronomers, which is the average distance between the Earth and the Sun is called what?
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astronomical unit
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What is the abbreviation for astronomical unit?
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AU
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The alignment of two bodies in the solar system so that they appear in the same part of the sky as seen from Earth is known as what?
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conjuction
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When Mars is located behind the Sun, as seen from Earth, it is said to be in what?
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conjuction
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The study of formation, organization, and evolution of the universe is called what?
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cosmology
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