It covers the three external Achievement Standards: Physics 3.3 Demonstrate understanding of wave systems Physics 3.4 Demonstrate understanding of mechanical systems Physics 3.6 Demonstrate understanding of electrical systems This workbook has brief exam revision notes for end-of-year study, with examples and NCEA exam questions from 2020 and earlier years. Full answers with explanations and A, M, and E grades are given. Use this workbook all year round or during Terms 3 and 4 to revise and practise exam questions.