Simple Machines

What Is a Simple Machine?

A simple machine is a tool that makes work easier. It helps us lift, pull, or move things. Even a tiny lever can do big jobs.

The Six Types

1. Lever

A lever is a stick that pivots on a point called a fulcrum. Push down on one end, and the other end lifts a load.

2. Inclined Plane

An inclined plane is a slanted surface, like a ramp. It lets you roll or slide objects up or down without lifting them straight up.

3. Wheel and Axle

A wheel turns around a rod called an axle. Turning the wheel moves the axle, and the axle moves the wheel.

4. Screw

A screw is an inclined plane wrapped around a rod. Turning it pulls things together or lifts them.

5. Pulley

A pulley is a wheel with a rope that can change the direction of a pull. It can also make lifting easier when more than one pulley is used.

6. Wedge

A wedge is a thick piece that tapers to a thin edge. It splits or lifts objects, like a knife or an axe.

How They Help Us

Simple machines are everywhere. We use levers to open doors, ramps to roll toys, wheels on bikes, screws in furniture, pulleys in playgrounds, and wedges in kitchen tools. They make everyday tasks easier and more fun!