Simple Machines
Across
- 4. The number of simple machines
- 5. Person who invented simple machines
- 7. The force applied
- 9. The pivot point in a lever
- 10. The resistant force
- 12. A rigid bar that pivots over a fixed point
Down
- 1. A device that makes life easier
- 2. A simple machine
- 3. The class of lever if long enough could move the Earth
- 6. First Class Lever
- 8. A force acting over a distance that moves an object
- 11. The number of classes of levers