Astronomy 23/223 In-Class Exercise:

Orbits and Motions

1. Individually, make a list of all the controls in an automobile which can induce acceleration. Then form groups of 3 and discuss your individual lists.
2. How could you determine the mass of Jupiter by making observations?
3. If the Earth suddenly became half its current mass, how would this change the orbit about the Sun? What would happen to the orbit of the Moon? Discuss these questions in groups of 2 or 3, and at least one group will be asked to share their results.
4. Can you find a place in the solar system where an object could remain at rest (as seen by a non-moving observer outside the solar system)? If so, where? If not, why not?


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This page was created by Darby Dyar and is maintained by Darby Dyar and Rebekah Robson-May.
Last updated on 19 April, 2002.