Simple Machines

A simple machine is a device that makes work easier by allowing us to push or pull in a more efficient way.

A lever is a simple machine that consists of a bar that pivots on a fixed point called a fulcrum.

A pulley is a simple machine that uses a wheel and a rope to lift heavy objects.

A wheel and axle is a simple machine that consists of a wheel attached to a rod (axle) that allows it to turn.

A wedge is a simple machine that is used to split or cut objects apart.

An inclined plane is a flat surface that is tilted at an angle to help move objects up or down.

A screw is a simple machine that is an inclined plane wrapped around a cylinder, used to hold things together or lift objects.

A lever works by using the fulcrum to change the direction of the force applied, making it easier to lift or move objects.

The purpose of a pulley is to change the direction of force, making it easier to lift heavy objects.

An example of a wheel and axle is a bicycle wheel, where the wheel turns around the axle.