Questions and Answers
According to Kepler's first law, which shape describes the orbit of a planet?
Why are the foci of an ellipse important in planetary orbits?
What type of axis does an ellipse have?
In terms of shape, what distinguishes elliptical orbits from circular orbits?
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Which astronomer developed three laws to describe planetary motion?
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How does the sun's position differ in an elliptical orbit compared to a circular orbit?
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What term describes the oval shape of most modern-day planetary orbits?
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Which factor determines how elongated or circular an orbit appears?
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"Oort cloud" is related to which concept described in the text?
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The long axis of an ellipse corresponds to which astronomical element?
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