+1 for Walter Lewin's explanations. I also can't say enough about the clarity of explanations and examples in Feynman's Lectures [1] and the HyperPhysics [2] tutorials.
I believe one can't appreciate the whole subject enough without knowing that the electromagnetic forces are how the atoms "work", also producing "chemistry" and everything we see.
To paraphrase Feynman, the electromagnetic forces also keep you from falling down through the floor.
For the start:
"If, in some cataclysm, all of scientific knowledge were to be destroyed, and only one sentence passed on to the next generations of creatures, what statement would contain the most information in the fewest words? I believe it is the atomic hypothesis (or the atomic fact, or whatever you wish to call it) that all things are made of atoms—little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another. In that one sentence, you will see, there is an enormous amount of information about the world, if just a little imagination and thinking are applied."
[1] https://www.feynmanlectures.caltech.edu/II_toc.html
[2] http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html