Multiple choice

Screwdrivers, faucets, and doorknobs are examples of which simple machine?

  1. screw

  2. lever

  3. wheel & axle

  4. inclined plane

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Screwdrivers, faucets, and doorknobs all utilize a central shaft (axle) connected to a larger handle or wheel, which is the definition of a wheel and axle simple machine.