Physics flashcards

Physics is unforgiving in a way few subjects are: you can't bluff your way through a problem you don't actually understand. Equations like the kinematic relations, Newton's laws, and Maxwell's equations are easy to recognize on a page but hard to recall under pressure, and the real challenge is knowing which formula applies to which situation, and why. That's where active recall and spaced repetition help most. Forcing yourself to retrieve a definition, a derivation step, or a free-body diagram from memory, instead of re-reading your notes, is the testing effect at work, and it builds the fast, reliable recall a timed exam demands. Spacing those retrievals so each card returns just before you'd forget it, the spacing effect, keeps related ideas, units, constants, and sign conventions from blurring together the way they do in a single cram session.

Cram turns your own physics material into a deck you can drill in seconds. Paste your lecture notes, drop in a problem set or textbook chapter as a PDF, share a web link, or just type a topic like "rotational dynamics," and Cram generates clean question-and-answer flashcards built from your source, not a stranger's set that may not match your syllabus. It then schedules every card with spaced repetition, so the cards you keep missing surface more often, and an exam countdown keeps your test date in view. Cram is offline-first on your iPhone with no ads and no data-selling, so you can review on the bus, in the lab, or the night before a midterm without distractions.