Across
- 3. Applying a force to an object and moving it in the same direction as the force
- 4. Two turning objects attached to each other at their centers
- 9. Disorder causing numbness and pain in the thumb and fingers
- 11. The rate at which an object changes position
- 12. Rotating wheel with teeth
- 13. A small cylinder and a crank
Down
- 1. A gear with teeth that fits into the links of a chain
- 2. The science of designing machines to suit people
- 5. A measure with the unit (meters)
- 6. A simple machine used to decrease effort on a load by increasing the distance it has to travel
- 7. The distance from the center of the wheel to the circumference
- 8. Anything that causes a change in motion of an object
- 10. A grooved wheel with a rope or chain running along it