This book is a comprehensive resource for pupils studying National 4 Physics, adhering 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, a special section on the Added Value Unit, and an answer section at the back of the book.