A wedge is a simple machine that helps to split or lift objects. It has a triangular shape, with a thick end that tapers to a thin edge. When you push the thin edge into an object, like a piece of wood, it forces the material apart. Common examples of wedges include knives, axes, and doorstops.
Wedges are used in many everyday tasks, making them very useful tools. For instance, when you use a screwdriver to tighten a screw, the wedge shape of the screwdriver's tip helps to grip and turn the screw. This simple design allows us to perform work more efficiently.