The holidays are over and its time to start the process of revising first for the trial exams then the real thing.  That's not to say that I have finished the course because I haven't. I always hope that my students will have started revising over the Christmas holidays but this year I've been doing it for then in a series of over 50 multiple choice quizzes that will lead them right through the course. They shouldn't be thought of as practice for paper 1, they're much more than that. They are a set of structured questions that are designed to test a students knowledge on every part of the course. Each question has a properly explained answer so students should learn from their mistakes and there are a lot of animations to help.

Here is a free example Waves