Across
- 4. done by a machine
- 8. how much a machines multiplies your effort
- 11. the work the machine does
- 12. class of lever with the input in the middle
- 13. machines can change force or
- 15. a wheel with a groove that holds a rope
Down
- 1. percent of Winput that becomes Woutput
- 2. causes a loss of efficiency
- 3. type of mechanical advantage that does not have friction
- 5. class of lever with the fulcrum in the middle
- 6. IMA for an inclined plane is ______ divided by height
- 7. class of lever with the output in the middle
- 9. a doorknob if an example of a wheel and
- 10. forces times distance
- 11. the work the user of a machines does
- 14. done by a person