Diagnostic

Written in the AP Physics C: Mechanics exam's format and at its difficulty: the multiple choice for every unit you've learned, then free response if you want it. It runs like the exam: one multiple-choice section on the AP clock, about 2 minutes a question (42 questions in 85 minutes on the real exam), with a calculator allowed throughout. You’ll see exactly which topics you’ve got and which to work on first. The clock pauses whenever you leave the page, and picks up where you were when you come back.