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Chapter 2 Review Sheet
1. Who said that the rate at which objects fall is based on the mass?
2. Who disproved this idea?
3. How do all objects accelerate?
4. What is the rate at which all objects fall?
5. What is air resistance?
6. Why does air resistance affect some objects more than others?
7. What is terminal velocity?
8. What is free fall?
9. When does free fall take place?
10. How are orbiting objects in free fall?
11. What 2 motions combine to cause orbiting?
12. How does gravity play a role in orbiting?
13. What is projectile motion?
14. List and describe the 2 motions involved with projectile motion.
15. Name 3 examples of projectile motion.
16. Who is Isaac Newton and why is he important?
17. What does Newton’s 3 laws of motion state?
18. How does friction play a role in Newton’s first law?
19. What is inertia?
20. Why is Newton’s First Law commonly called Law of Inertia?
21. How is mass the measure of inertia?
22. What does acceleration depend on?
23. What happens to the mass if an objects acceleration decreases? Increases?
24. What happens to the force if an objects acceleration decreases? Increases?
25. How do we express Newton’s Second Law mathematically?
26. Do all forces act in pairs?
27. What are the 2 forces always acting objects?
28. Name 3 examples of action and reaction forces.
29. What is momentum?
30. How is momentum conserved? Give an example.
31. How is momentum involved in Newton’s Third Law of Motion?
32. Explain why a ball moves in a straight line as it rolls across a table but follows a
curved path once it rolls off the edge of a table.
33. Explain why results differ on the moon and on Earth when a hammer and a
feather are dropped from the same height at exactly the same time.
34. How does Newton’s second law explain why it is easier to push a bicycle than to
push a car with the same acceleration?
35. What are 2 ways that you can increase the acceleration of a loaded grocery cart?
36. How does Newton’s their law explain how a rocket takes off?
37. Make sure you are able to calculate momentum, force, acceleration and mass.