Physics Principles and Problems 2009

Chapter 7: Gravitation

Web Links

The Nine Planets
Take a tour of our solar system with countless links, pictures, and statistics. Visit this site and compare the physical properties of two planets of your choice.
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Extra Planetary Perception
This page gives a description of how planetary motion was used to discover planets orbiting stars other than our sun. Visit this site and describe how Kepler's laws are important to discovering these new planets.
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