Aristotelian physics is a way of understanding how things move and work in the world. It was named after a Greek philosopher named Aristotle who lived a long time ago.
Imagine you have a ball and you roll it down a hill. According to Aristotle, the ball is moving because it wants to be at the bottom of the hill. This is because everything in the world is made up of four elements: earth, water, air, and fire. These elements combine to create different kinds of things, and each element has its own natural place in the world. Earth is the heaviest, so it naturally wants to be at the bottom.
Aristotle also believed that everything in the world is made up of two parts: matter and form. Matter is the stuff that things are made of, like the rubber in a ball. Form is the shape or design that matter takes on, like the round shape of a ball. According to Aristotle, matter can change form, but it can never be destroyed.
Another important idea in Aristotelian physics is the idea of motion. Aristotle believed that all motion needs a cause, or something that makes it happen. For example, if you push the ball down the hill, your push is the cause of the ball's motion.
Overall, Aristotelian physics was a way of understanding the world through observation and logical reasoning. While we now know that some of his ideas are not accurate, Aristotle's work laid the foundation for much of modern science.