Dekalb Reads Assignment  9.2 B

Simple Machines

1. What is wheel and axle?
2. What kind of simple machine is the steering wheel of a car?
3. What kind of simple machines are screwdriver and crank?
4. What kind of simple machine is a loading ramp?
5. What do inclined planes do?
6. Why is the output force of a ramp shown by an arrow pointing up?
7. How does an inclined plane turns a small input force to a large output force?
8. What is a wedge?
9. An ax blade is an example of _________________________________ .
10. A wedge functions like _______________________________________________________ .
11. How does a wedge work?
12. What kind of simple machine is a nail?
13. What is a screw?
14. What are jar lids?
15. What are spiral staircases?
16. Define a compound machine.
17. Name the different simple machines combined in a pair of scissors.
18. Name the different simple machines combined in a pair of scissors.