The wheel and axle makes work easier by moving objects across distances. The wheel turns with the axle, causing movement. One example is a wagon, where the container rests on top of the axle.
The inclined plane has a flat surface that is slanted so it can help move objects across distances. It is commonly used against a fulcrum, used to brace underneath the long, flat surface. A common one is a ramp.
The wedge is a triangular tool that uses a pointed edge to push two different objects, or two parts of an object apart. One example is a hand axe.
The lever is any tool that pries something loose. They can also lift objects. A lever is an arm that pivots against a support. One example is a see-saw.
The pulley is a cord that wraps around a wheel. As the wheel rotates, the cord moves in either direction. One example is a flagpole, where the the rope is attached to a pulley to pull up the flag.
The screw is an inclined plane around a cylinder. It converts rotational movement to linear movement. It moves from a lower position to a higher position in a circular motion. It can also be used to hold things together in place.