3. Chapter 10 Forces Jeopardy Review

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5. Forces 10 Points The amount of matter in an object. What is mass?

6. Forces 20 points A unit of force. What is a Newton?

7. Forces 30 points This type of force causes an objects motion to change. What is an unbalanced force?

8. Forces 40 points When forces can be added together. What is when they are acting on the same object?

9. Forces 50 points The units in a Newton. What are kg·m/s 2 ?

10. Friction 10 points Friction acts in a direction ______ to the direction of an object’s motion. What is opposite?

11. Friction 20 points The type of friction on a dry slide. What is sliding friction ?

13. Friction 30 points The type of friction on a water slide. What is fluid friction?

14. Friction 40 points The type of friction when air rushes against an airplane. What is fluid friction?

15. Friction 50 points One way to decrease friction. What are oil, wheels, smooth surfaces?

16. Gravity 10 points The force that acts between all objects in the universe. What is gravity?

17. Gravity 20 points The measure of the force of gravity on an object. What is weight?

18. Gravity 30 points As the distance decreases between two objects, the force of gravity does this. What is increase?

19. Gravity 40 points What happens to an object in free fall. What is it accelerates in a downward direction?

21. Gravity 50 points Why a ball on the moon will travel further than a ball on Earth. What is because the moon has 1/6 less gravity and the ball will take longer to fall?

22. Newton’s 1 st & 2 nd Laws 10 points Newton’s 1 st Law. What is a body at rest will stay at rest, a body in motion will stay in motion unless acted upon by an unbalanced force.

23. Newton’s 1 st & 2 nd Laws 20 points The equation for Newton’s 2 nd Law. What is F=M x A or Acceleration = Net Force/Mass?

24. Newton’s 1 st and 2 nd Laws 30 points According to Newton’s 2 nd Law of Motion, what happens to an object if the force increases. What is acceleration increases?

25. Newton’s 1 st and 2 nd Laws 40 points Why a person inside a car keeps moving even when the car stops. What is Newton’s 1 st Law of Motion?

26. Newton’s 1 st & 2 nd Laws 50 points The net force of a 55 kg water skier accelerating at 2.0 m/s 2. What is 110 N (110 kg·m/s 2 )?

27. Newton’s 3 rd Law 10 points Why a rocket rises into the air. What is gases go downward and the rocket goes upward?

28. Newton’s 3 rd Law 20 points The action/reactions forces in the rocket racers. What is the action was the air coming out of the balloon, the reaction was the racer moving in the opposite direction ?

29. Newton’s 3 rd Law 30 points The momentum of an object depends on these two variables. What are mass and velocity?

30. Newton’s 3 rd Law 40 points Law of Conservation of Momentum. What is the total momentum of any group of objects remains the same unless an outside force acts on the object?

31. Newton’s 3 rd Law 50 points The momentum of a 250 kg dolphin swimming 4 m/s. What is 1000 kg·m/s?