Simple Machines

6. a combination of different simple machines working together TWO WORDS
11. a lever that has the fulcrum between the load and the effort THREE WORDS
12. a pulley system that uses one wheel THREE WORDS
13. a simple machine that lets you pull down a rope, chain, or wire to lift something
14. a rigid bar thats inserted through a hole in a wheel
17. a flat surface whose ends are at different heights TWO WORDS
19. a simple machine used to push things apart

1. a machine consisting of one or more pulleys and a wide flat belt TWO WORDS
2. a lever that has the effort between the fulcrum and the load THREE WORDS
3. the mathematician who used simple machines to win battles against the Romans
4. a series of intermeshing gears, also called a gear train
5. a lever that has the load between the fulcrum and the effort THREE WORDS
7. any device that changes the amount of force you have to use to get something done
8. a belt that turns more than one wheel TWO WORDS
9. the point that a lever goes over
10. usually a circular band made of rubber
15. an inclined plane wrapped around a cylinder or cone
16. a wheel with teeth along its edge
18. a bar that goes up and down over a point