SIMPLE MACHINES
Across
- 4. a strait rod or board that pivots on a point used to lift objects
- 5. an example of a lever
- 8. a wheel that usually has a groove around the outside edge
- 9. an example of an inclined plane
- 10. a sloping surface used to alter the effort and distance involved in doing work
- 13. two or more simple machines working together
- 15. the groove on a screw
- 16. that handle that turns a wheel
Down
- 1. simple machines are tools that help make work _____
- 2. two toothed wheels that fir together
- 3. an example of a pulley in the school yard
- 6. simple machines have no _____ parts
- 7. something that has gears
- 11. input/output work, that is used to over come friction
- 12. two inclined planes joined back to back
- 14. machines that are round and turn to make things go