Wedge

The video tutorial introduces wedges as simple machines that help push things apart. It defines a wedge as a triangle-shaped piece of solid material with at least one slanting side ending in a sharp edge. Examples include knives, axes, chisels, and shovels. The tutorial discusses the historical evolution of wedges and their modern applications, such as in airplanes and ships. It concludes with a reflective question about the wedge shape of predator teeth.

What is a wedge and how does it function as a simple machine?

Can you provide examples of objects that are considered wedges?

How have wedges evolved throughout history?

In what ways do wedges make it easier to push things apart?

Why do you think the teeth of predators like lions are shaped like wedges?