Across
- 5. a inclined plane wrapped around a cylinder
- 6. the force that is exerted by a machine
- 9. mechanical advantage in the absence of friction
- 13. a slanted surface along which a force moves an object to a different elevation
- 14. the fixed point the bar rotates around
- 15. a simple machine that consists of a rope that fits into a groove in a wheel
- 16. output force multiplied by output distance
- 19. a combination of two or more simple machines.
- 20. the SI unit of power
- 24. distance the output force is exerted through
- 25. a v shaped object whose sides are two inclined planes
Down
- 1. arm distance between the input force and fulcrum
- 2. the number of times that the machine increases an input force
- 3. equal to about 746 watts
- 4. the rate of doing work
- 7. the percentage of work input that becomes work output
- 8. the force you exert on a machine
- 10. a device that changes a force
- 11. Equal to the ratio of the output force to the input force
- 12. The SI unit of work
- 16. Work done by the input force acting through the input distance
- 17. simple machine that consists of two disks or cylinders.
- 18. the distance the input forces acts through
- 21. arm distance between the output force and fulcrum
- 22. product of force and distance
- 23. a rigid bar that is free to move around a fixed point