A concise study and reference guide for SL & HL IB Physics. The guide helps to explain all the tricky formulae and when to use them, provides easily understandable definitions for every word and law in the syllabus and gives step-by-step instructions for useful derivations. Use it for quizzing yourself and others, as an aid while doing tests and exams, or simply as a 'here-to-help' formulae book. This guide covers the entire SL & HL syllabi and has been revised in line with suggestions and improvements from IB students taught by Tim. Tim scored 44 points in the IB in 2005, and after completing an MEng at Oxford University, now runs Elite IB (www.eliteib.co.uk), a tutoring agency catering for IB students around the world providing all forms of tuition and university entrance assistance.