Chapter 5: Circular Motion; Gravitation
Objectives

• Around and around—how do you describe circular motion?
• What is centripetal acceleration and how do I use it?
• How do forces produce circular motion?
• Why do different curves have different speed limits?
• Why does 'banking' a curve help a car negotiate it?
• How does a centrifuge work?
• Universal Gravity—what is it and why is it "Universal"?
• All satellites, great and small—what do they have in common?
• Are astronauts really weightless and what does weightlessness mean?
• Kepler's Laws—what do thet tell us about the motion of the planets?
• Gravity is a force in Nature. What are the other forces?