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- 1. Intro and Gravity Quiz
- 2. What three things can a force do?
- 3. Give an example of a contact force
- 4. Use magnetic force to describe Newton’s third law in action
- 5. What is the difference between Mass and Weight
- 6. Does the Hubble Telescope experience gravity? Explain
- 7. Which is a correct diagram? A B C D
- 8. What is Newtons first law?
- 9. State two facts about the fall of the feather and the ball F = ma F = 0.01 * 9.8 F = 0.98 N F = ma F = 0.5 * 9.8 F = 4.9 N
- 10. What acceleration will result when a 12 N net force applied to a 3 kg object?
- 11. What is the force on a 1000 kg elevator that is falling freely at 9.8ms -2 ?
- 12. Why the impossible orbit impossible?
- 13. Use F=Gmm/r 2 and G = 6.67 x10 -11 to find the force between two 1000kg cars that are 3m apart?

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