Across
- 2. the point on which a lever rests or is supported and on which it pivots a thing that plays a central or essential role in an activity event or situation
- 4. a short slender sharp-pointed metal pin with a raised helical thread running around it and a slotted head used to join things together by being rotated so that it pierces wood or other material and is held tightly in place
- 6. simple lifting machine consisting of a rope that unwinds from a wheel onto a cylindrical drum or shaft joined to the wheel to provide mechanical advantage
- 8. a plane inclined at an angle to the horizontal
Down
- 1. A machine consisting of two or more simple machines operating together
- 3. a rigid bar resting on a pivot used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
- 5. a piece of wood metal or some other material having one thick end and tapering to a thin edge that is driven between two objects or parts of an object to secure or separate them
- 7. a wheel with a grooved rim around which a cord passes