Wedge: Two inclined planes joined back to back. Wedges are used to split things.

  • Examples: Axe, Zipper, Knife

A wedge is a triangular shaped tool that is thicker on one end (the blunt end) and thinner on the other end (the edge.) A slice of pie is the shape of a wedge. Wedges are one of the six simple machines. It can be used to separate two objects, split an object, lift an object, or hold an object in place. more…

Plow pulled by horses (c.1886)
  • Early farming tools

One of the earliest farming tools was the plow or wedge, used to cut into the ground so that crops could be planted. In this picture, horses are harnessed to the plow. In earlier times, the wedge-shaped plow was attached to a pole and used to chop through the dirt.
Learn more…

.. e3