A wedge is a simple machine that consists of a triangular shape, which is used to separate objects or hold them in place. It converts a force applied to its wide end into a greater force at its narrow end, making it easier to split materials like wood or drive objects into surfaces. Common examples of wedges include knives, axes, and doorstops. Wedges are often used in construction and woodworking, where they help in tasks such as lifting heavy objects or creating precise cuts. They are also found in various tools and devices, including screwdrivers and shovels, enhancing efficiency in everyday tasks.