Science Matters: Wedges

Wedges can be found all around you. When people cut logs for a campfire, they use an axe. An axe is a type of wedge. Other types of wedges include any object with a blade, such as a knife or a shovel. Door stops and wheel blocks are types of wedges that can help stop heavy objects from moving.
A wedge is a triangle-shaped tool with a sharp edge. It can be used to separate two objects, life an object, or hold an object in place.