Across
- 1. an inclined plane that moves
- 2. the force used to move an object
- 4. the number of times a machine multiplies the effort force
- 6. a measure of how much work a machine does compared to the effort used
- 7. a wheel with a rope or chain around it that changes the direction of the force
- 9. an inclined plane wrapped in a spiral around a cylinder
Down
- 1. a simple machine made of a wheel with a rod in the centre
- 3. the force that opposes the effort force
- 5. a ramp
- 8. a simple machine with a bar that moves around a fixed point