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