Impeller

An impeller is like a little fan that helps move things around. Imagine you have a bucket of water and you want to pour it out. Normally, you just tip the bucket over and let gravity do the work. But if you add an impeller to the bottom of the bucket, it will help push the water out faster.

The impeller works by spinning around really fast. When it spins, it creates a force that pushes the water. It's like when you spin around in a circle and feel the force pulling you outwards. The same thing happens with the water - the force of the spinning impeller pushes the water out of the bucket.

Impellers are used in lots of different machines to move fluids like water or air. They're especially useful in pumps and fans, where they help move large amounts of fluid quickly and efficiently.