1. Bell Ringer
What simple machine do we sometimes put under a door to keep it open?
What simple machine helps you travel in a car?
What simple machine brings a bucket of water to the top of a well?
What simple machine are you using when you cut a piece of paper with scissors?
What simple machine are you using when you use the ramp outside of a building rather than the stairs?

2. The SI unit for power

3. Output force divided by input force

4. A simple machine that consists of a grooved wheel with a rope or cable wrapped around it

5. The force a machine exerts on an object

6. Force x distance

7. A device that combines two or more simple machines

8. The SI unit for work

9. Input force x Input distance

10. Work divided by time

11. The fixed point a lever pivots around

12. The force you put on a machine

13. Simple machine that is a flat, sloped surface

14. Simple machine that consists of a rigid bar that pivots about a fixed point

15. The SI unit for power

16. A device that changes the amount of force, distance, or direction (It makes work easier.)

17. The percentage of the input work that is converted

18. Output force x Output distance

19. A simple machine that is an inclined plane wrapped around a central cylinder to form a spiral