A scotch tape dispenser uses a lever as its simple machine.

Aqui está como funciona:

* fulcrum: The pivot point of the lever is the hinge where the dispenser is attached to the surface.
* esforço: You apply force to the handle of the dispenser.
* Load: The tape itself is the load being moved.

When you push down on the handle (effort), the lever rotates around the fulcrum, applying force to the tape (load), which unwinds.