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