Across
- 4. simple machine that consists of two circular objects
- 5. Comparison of work input and work output
- 7. A grooved wheel that holds objects
- 8. Device(s) that help people work
Down
- 1. Number of times a machine multiplies the input force
- 2. Plane A ramp
- 3. Simple machine that pivots at a fulcrum
- 6. Fixed point