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LECTURE 8
questions before lecture
think about these
- What is the point of the famous story about Newton being hit on the head by a falling apple?
- What is weight, as distinct from mass? Can mass vary? Can weight vary?
- How is an object's weight related to the force of gravity on the object?
- What is the formula for the area of a sphere of radius r?
- In addition to the force of gravity, what other forces are there in nature? How do they compare to gravity in strength?
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Please email any questions, comments, or suggestions to
Professor Bernice Durand, bdurand@theory3.physics.wisc.edu.
Revised September 22, 1997.
Content © 1997, Bernice Durand
Images and layout © 1997, Shane Hamilton
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