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