<p>The resources covers AQA A level Physics photoelectric effect and atomic energy levels. Specifically, specification points 3.2.2.1-3.2.2.4. It has revision notes, then ten multiple choice questions, ten numerical based questions, and then five describe and explain questions. Full answers are provided.</p>

<p>Conservation rules for particle interactions. A summary of the rules, a breakdown of the particle composition, if quarks, and then 15 practice questions with answers.</p>