A ramp is an inclined plane. When an object is moved up an inclined plane, less effort is needed than if you were to lift it straight up, but, you must move the object over a greater distance. To elevate a car, it is much easier to push it up a ramp than it is to lift it . List three examples of inclined planes. A wedge is an inclined plane which moves.
Most wedges are combinations of two inclined planes.
A knife, axe, and razor are all good examples of wedges. List 3 more examples of wedges. A screw , like a wedge, is another form of an inclined plane. A screw is an inclined plane wrapped around a cylinder to form a spiral. A C-clamp is a good example of how a screw is used.