Force Quiz Review
1. What is a force?
2. What do balanced forces do to objects?
3. What do unbalanced forces do to objects?
4. Explain what Newton’s 1st law of motion is.
5. Explain what the law of inertia is.
6. Explain what Newton’s 2nd law of motion is.
7. Write the formula for force.
8. What is the force of a hammer if it is accelerating 2 m/s/s and has a mass of 10 kg?
9. What happens to force if acceleration doubles?
10. You usually use a 10 pound bowling ball when you bowl. You friend tells you that you can only use a
20 pound bowling ball the next game.
a. What will happen to the acceleration of the bowling ball if you use the same
amount of force as with the 10 pound bowling ball?
b. If you want to accelerate the 20 pound ball the same as the 10 pound ball, what
will you need to do?
11. Describe what friction is.
12. Identify the direction that friction is always applied to a moving object.
13. Friction causes moving objects to do what?
14. Name 3 types of friction.
15. Name the type of friction that requires the most force to overcome.
16. Name the type of friction that is present when a person skis, skateboards, walks, and swims.
17. How is the friction reduced in a car’s engine, so that it won’t overheat and break?
18. What type of friction is present on a roller coaster?
19. Explain what gravity is?
20. Explain how gravity works on Earth.
21. What does Earth’s gravity do to objects on Earth (acceleration)?
22. Explain what terminal velocity is and discuss all the forces involved.
23. What does gravity cause the cars on a roller coaster to do?
24. Explain what centripetal force is. What will happen to a moving object if centripetal force is removed?
25. Explain how centripetal force works in a roller coaster.
27. Identify all the forces and their directions when a marble goes down the spiral track that you have seen in class.
28. What is the net force on the marble?