Across
- 2. this made of two or more simple machines.
- 4. how many types of simple machines are there.
- 8. the measure for force it takes to move an object a certain distance.
- 9. its one of our most important inventions especially for transportation.
- 10. a bar that moves on or around a fixed point; lifts or moves loads.
Down
- 1. machine with grooves that winds round and round in a spiral;can also bring materials together.
- 3. a surface, often flat, set at an angle to another surface.
- 5. a special kind of wheel that changes the direction of the force; when pull down, it go up
- 6. a push or pull that causes an object to move, stop or change directio
- 7. machine used for slicing; lifts, splits, and holds.