By: Jaziah Ellington
A stiff bar that rests on a support, which lifts or moves loads, and it works by lifting heavy objects, also it can be used for lifting things.
It can be used by using grooved wheels and a rope to raise or move loads, it also can be used to pull things in a direction.
It is an object with at least one slanting side ending in a sharp edge, also it works by lifting an object or hold it in place.
Wheel and Axle
It is a wheel with a rod through its center lifts loads, it also can be used for rotating objects.
It is a slanting surface connecting a lower level to a higher levels, it also can be used for moving heavy loads over vertical obstacles.
It is an inclined plane wrapped around a pole which hold things together, it also is used to lift materials and hold them in place.