What type of simple machine is a light bulb?

What type of simple machine is a flight of stairs?

What type of simple machine is a slide?

What type of simple machine is an ax?

What type of simple machine is a knife?

What type of simple machine is a seesaw?

What type of simple machine is a wheelbarrow?

What type of simple machine is a doorknob?

What type of simple machine is a Ferris wheel?

What type of simple machine does a flagpole use?

What type of simple machine does a window shade use?

What type of simple machine is a flat, slanted surface that works like a ramp?

What type of simple machine is a pair of inclined planes attached back-to-back and is used to force things apart?

What type of simple machine is a spiral wrapped around a center post and can lift objects or hold two objects together?

What type of simple machine is a bar that pivots or turns on a fixed point called a fulcrum?

What type of simple machine is a wheel that is used with a cord or rope and when its pulled downward, the other end lifts upward?

What type of simple machine is made up of a wheel with a rod attached to it, called an axle?