Across
- 3. a simple machine made of a rigid beam and a fulcrum.
- 5. plane is a ramp that assists moving heavy objects up and down heights.
- 6. a spirally grooved solid cylinder and a correspondingly grooved hollow cylinder into which it fits.
Down
- 1. a simple machine where a wheel turns around a bar to move objects.
- 2. a triangular shaped tool, and is a portable inclined plane.
- 4. a simple machine and comprises a wheel on a fixed axle, with a groove along the edges to guide a rope or cable.