Teaching Physics with the Physics Suite

Edward F. Redish

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Decreasing gravity?

Newton suggested that the force of gravity falls off with distance. The gravitational field strength at the surface of the earth is about 9.8 N/kg. About how much less is the gravitational force at the top of our classroom compared to its value on the floor? Be sure to clearly state your assumptions.

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Page last modified December 4, 2004: G08