11.

Question

Classify the blades on a can opener as a simple machine.

Can Opener - Manual

wheel and axle

pulley

screw

lever

Answer 1

In this case, the blade on a can opener can be classified as a lever, which is a type of simple machine. A lever is a rigid bar that is free to pivot around a fixed point, called a fulcrum. The blade of the can opener acts as a lever that allows for the cutting action when opening a can.