1. Powerpoint Jeopardy Forces of Motion LawsCalculatin’ FunNewton Challenge Hodgepodge 10 20 30 40 50

2. Forces are described by their __________ & __________ Strength & direction

3. Greatest velocity that a falling object can reach. Terminal Velocity

4. This is a product of an object’s mass & velocity. Momentum

5. This is the tendency of an object to resist a change in motion. Inertia

6. This law says that gravity acts between all objects in the universe due to their mass. Law of Universal Gravitation

7. This law states that an object at rest will stay at rest unless acted on by an outside force. Newton’s 1 st Law of Motion

8. As mass increases; inertia _______________. Increases

9. Force = mass x acceleration. Newton’s 2 nd Law

10. What force causes a bouncy ball to rise back into the air after it has hit the ground? Reaction Force

11. Which law says that for every action there is an equal an opposite reaction force. Newton’s 3 rd Law

12. A speedboat pulls a 55-kg water- skier. The force causes the skier to accelerate at 2.0 m/s 2. Calculate the net force that causes this acceleration. 110 Newtons

13. Find the momentum of a 6 kg bowling ball that is moving at 10 m/s down the alley toward the pins. 60 kg m/s

14. A marble at rest is dropped from a tall building. The marble hits the ground with a velocity of 98m/s. How long was the marble in the air? 10 seconds

15. Find the acceleration of a 7kg mass if a force of 63 N is used to move it toward earth. 9 m/s/s

16. If Mr. Incredible has a mass of 15kg on earth. What would his mass and weight be on Mars. The acceleration due to gravity of mars is 3.8. Mass = 15 kg Weight = 57 N

17. ___________ is when the only force acting on an object is gravity. Free Fall

18. If two erasers were released at the same time but one was dropped and the other was thrown, which would hit the ground first. The same time

19. Kg x m/s is a unit of what? Momentum

20. As mass increases; acceleration ________________. Decreases

21. Objects at rest stay at rest will stay at rest unless __________ Acted on by an outside force

22. Why don’t objects stay in motion forever? Friction

23. Which will hit the ground first a 2 kg golf ball or a 10 kg bowling ball? They will hit at the same time

24. Why do some objects on earth fall faster than others? Air Resistance

25. A rock at rest falls off a tall cliff and hits the valley below after 3. 5s. What is the rock’s velocity as it hits the ground? 34.3 m/s

26. Why don’t action reaction forces cancel out? They do not act on the same object