Question

What is a wedge? Mention one of its uses.

Answer 1

Wedge:

1. A wedge is a piece of wood or metal, that is narrow at one end and broad at the other. It is formed when two inclined planes are attached back to back.
2. The working principle of a wedge is to reduce the surface area so that minimum effort is
   required to generate maximum pressure. The sharper the edge of the wedge, the easier it is to cut something with it.
3. Wedges are used for various purposes, such as cutting, splitting, tightening or holding back, holding together, scraping, etc.
4. Some wedges are also used to fasten objects. For example, a nail that is used to hold two pieces of wood together is a wedge.
5. An example of the wedge is axe.
   1. It is a modified form of a wedge.
   2. It is used for cutting down trees.
   3. It is also used in cutting logs of wood into small pieces so that they can be used as firewood in chulhas.