Simple machines make work easier. They have few or no moving parts and they work by changing the direction of a force or the amount of force needed to do something.
To better understand how simple machines work…
LET’S BREAK IT DOWN!
There are six different simple machines.
The six simple machines are the wedge, screw, lever, pulley, inclined plane and the wheel and axle. They all make work easier and have few or no moving parts.
A pulley can move things from a low area to a higher one.
A pulley has a wheel that allows you to change the direction of a force. As you pull down on the rope, the wheel turns and whatever is attached to the other end goes up.
A lever helps move heavy objects.
When you push down on one side of a lever, the other side goes up. Levers can also be used to lift heavy objects such as a rock or furniture. A seesaw is an example of a lever.