To understand physics, you have to understand the language of physics. To understand the language of physics, you have to understand the concepts.
We use concepts to describe physics phenomena. Any field of study needs concepts.
We use variables to measure the measurable part of the phenomena. To fully describe a phenomenon, we must be able to describe it.
The best way for students to think about what they’re learning is to challenge them with questions. The questions are more important than the answers. I always say this because I believe it is true.
So here’s a question for you: what is physics?