Physics Nook pairs interactive graphs and simulations with short explanations. For students, I would treat this as notes to supplement other resources. For teachers, this is a growing compilation of "interactives" that were previously scattered across the web (or written and never shared).

This site will not teach you physics; my hope is that it helps strengthen your intuition or clarify a concept. You will eventually need to struggle through challenging problems. There are a few questions at the end of each page, but they are not meant to be comprehensive. For additional practice, I recommend finding one of those paper textbooks humans used to write.