Jeopardy

1. Jeopardy Forces and Motion & Simple Machines Review

3. 100 What causes an object to change position? An object will change positions when it is acted upon by an outside force. Main

4. 200 What object requires more force to push it, a classroom chair or our back table? Why? The table requires more force because it has more mass. It takes more force to accelerate large mass than small mass. Main

5. 300 What is a force? A force is any push or pull. Main

6. 400 Main Name two forces that occur naturally. Friction and gravity.

7. 500 What is gravity? Gravity is the pull between masses. Main

8. 100 Name all six simple machines. Lever, pulley, wheel and axle, wedge, screw, and inclined plane. Main

9. 200 Machines help us by ________________________ and ___________________________. Changing the direction of the force and changing how much force is applied. Main

10. 300 Which simple machine am I?I have a bar that pivots on a fulcrum. I am separated into three classes. I lift or move a load. I am a lever. Main Main

11. 400 Which simple machine am I? I am two inclined planes put together. I am used to raise or split an object. I am a wedge. Main

12. 500 What type of simple machine is shown by each picture below? A slide is an inclined plane, a baseball bat is a lever, and a knife is a wedge. Main

13. 100 Name two examples of a pulley. Some examples may include a flag pole, a fishing reel, or a sailboat mast. Main

14. 200 What is an inclined plane and what is it used for? A slanted flat surface with one end raised higher than the other. An inclined plane makes it easier to slide a load up or down rather than having to directly lift it. Main

15. 300 Which simple machine am I? I am an inclined plane wrapped around a pole or cylinder. I am used to hold things together. I am a screw. Main

16. 400 Name the simple machine that goes with each object below: The pencil sharpener is a wheel and axle, the fishing rod reel is a pulley, and the ax is a wedge. Main

17. 500 Situation: Your teacher needs to lift and move a heavy box of books to her new classroom. She cannot lift the box with her own strength. What simple machine could she use and why? Answers will vary—wheel and axle and lever are the best choices to go with this purpose. Main

18. 100 Objects with more mass have a greater or lesser pull on each other? Greater Main

19. 200 What is mass? Mass is the amount of matter in an object. Main

20. 300 How are weight and mass different? Weight can change on other planets due to the change in gravity. Your mass always stays the same no matter where you are. Main

21. 400 . How a force affects an object depends on the object’s ______. Mass Main

22. 500 Why are simple machines used? To make work easier. Main

23. 100 If you toss a green tennis ball in the air, it will fall back down to the ground. Why is this true? The tennis ball will fall to the ground because of gravitational force. Main

24. 200 Show one example of friction. Describe another real-world friction example. ??? Main

25. 300 What is friction, and what does it do to motion? Friction is a force that resists motion between two objects that are touching. It slows motion. Main

26. 400 If a Monster Truck and a Smartcar are traveling at the same speed, and the drivers apply the breaks at the same time and with the same force, which one will travel farther before it stops. Why? The Monster truck will travel farther because it has greater mass and more momentum, which makes it difficult to stop. Main

27. 500 What causes the speed or direction of an object to change? A force causes the direction or speed of an object to change. Main