Across
- 3. Sloping surface that makes moving from one level to another more easily
- 6. A larger wheel connected by a smaller cylinder
- 7. Toothed wheels fit together either directly or through a chain
Down
- 1. An inclined plane wrapped around a center rod
- 2. Gets thinner at one end that is used to split material
- 4. A wheel and rope that can change the direction of a force
- 5. Rod or board that rests on a point known as a fulcrum