Across
- 4. a machine consisting in two or more simple machines
- 7. a simple lifting machine consisting on a rope that unwinds from a wheel onto a cylindrical drum or shaft
- 8. a machine that helps to move a heavy load with one end and pressure on the other
Down
- 1. a plane inclined at an angle to the horizontal
- 2. a piece of ,wood, metal, or some other material having one thick end and tapering a small end
- 3. the point where a lever sits on
- 5. a short, slender, sharp pointed metal pin with a raised helical thread running around it a slotted head, used to join together by being rotated so that it pierces wood or other material and is tightly held in place
- 6. a machine that changes the direction of force being applied