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