Across
- 5. How well a machine works (greater output for input)
- 8. A rigid bar that is free to move around a fixed point
- 9. A simple machine that consists of a rope that fits into a groove in a wheel
- 11. The force exerted on a machine
- 12. A device that is thick at one end and tapers to a thin edge at the other end
Down
- 1. A device that makes work easier
- 2. A device for making, breaking, or changing the connections in an electrical circuit
- 3. An inclined plane wrapped around a cylinder
- 4. A electrical device that resists the flow of electrical current
- 6. Two different sized circular objects that are attached together and turn as one
- 7. The force exerted on an object by a machine
- 10. The number of times a machine increases a force exerted on it