Across
- 7. a device made up of two or more simple machines
- 8. power is measured in this unit
- 9. a rigid bar resting on a pivot
- 10. the use of force to move an object over a distance
- 12. a wheel with a groove for a rope or cable
- 14. the pivot point of a lever
- 15. Simple machines can ____ the input force many times.
- 18. A _____ is a pully that can be added to a cable without having to detach the cable.
- 19. an inclined plane wrapped around a cylinder
Down
- 1. a push or a pull on an object
- 2. an inclined plane that joins two different levels
- 3. the unit of work
- 4. a triangular tool
- 5. a flat surface that is tilted
- 6. the unit of force
- 11. wheel and ____
- 13. a device that can change the direction of a force
- 14. the force that opposes motion
- 16. a special kind of lever with the fulcrum at the middle
- 17. A baseball bat is a ______ class lever
- 18. a wheel barrow is an example of a ______ class lever