Across
- 5. a measure of how much of the work put into a machine is changed to useful
- 6. a machine consisting of two wheels of different sizes that rotate together.
- 9. a bar that is free to turn on a fixed point called a fulcrum.
- 10. a rope wrapped around a wheel.
Down
- 1. an inclined plane that turns around a central point
- 2. a machine that combines two or more simple machines
- 3. a device that makes work easier with only one movement.
- 4. a slanted surface or ramp
- 6. put out by a machine.
- 7. force resistance over force effort
- 8. an inclined plane with 2 sloping sides instead of one