Across
- 1. the distance between the threads in a screw
- 4. what a second class lever is like
- 7. it is done when a force causes an object to move
- 8. the unit of measurement for work
- 9. the amount of classes of levers there are
Down
- 1. a rope, belt, or chain wrapped around a grooved wheel
- 2. the rate at which work is done
- 3. a rigid bar that is free to turn at a fixed point
- 5. the unit of measurement for power
- 6. modified inclined plane that wraps around a shaft