The A-Z Physics Handbook explains all the key terms in your A-level course, and has been completely updated for the new AS and A2 specifications. Each entry begins with a clear definition and is followed by explanation, worked examples and cross-references where relevant.The handbook provides expert advice from a leading author that will help familiarize you with the language of physics--the more important the term, the more detailed the entry. It is invaluable for students of all pre-university courses, as well as undergraduates.This new digital edition includes free access to a supporting website to make searching for terms even quicker, and a free desktop widget to bring concise definitions instantly to your fingertips.