# hwk_answers_1all - from point A to point B how many months...

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Quiz: Homework Set 1 https://angel.msu.edu/section/content/default.asp?WCI=pgTool%5FQu. .. 1 of 1 12/4/2007 10:56 AM Homework Set 1 1. [2 pts] If a planet has an orbital period of 98 years, what is the length, in astronomical units), of the semi-major axis of its orbit? (Note: for a roughly circular orbit, the semi-major axis is about the same as the average distance from the Sun). Round your answer off to one decimal place. Enter just the number, not the units. Answer: 21.3 2. Match each phrase with the appropriate definition [1 point per correct match]. 1. energy 2. acceleration 3. angular momentum 4. force 5. mass 6 A. the cause of an acceleration 6 B. ability to do work 6 C. a property of rotating objects 6 D. the result of a force being applied 6 E. determines amount of acceleration for an applied force Answer: A:4, B:1, C:3, D:2, E:5 3. [2 pts] The sketch shows the orbit of a planet around the Sun. If Area 2 is 2.8 times as big as Area 1, and it takes the planet 2.9 months to move
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