This book is a comprehensive resource for pupils studying National 4 Physics which adheres closely to the SQA syllabus. Each section of the book matches a mandatory unit of the syllabus, and each chapter corresponds to a key area. In addition to the core text, the book contains a variety of special features: Activities to consolidate learning. Worked examples to demonstrate key processes. In-text questions to test knowledge and understanding. End-of-chapter questions for homework and assessment. Summaries of key facts and concepts. Special section on the Added Value Unit. Answer section at the back of the book.