WJEC Physics for A2: Student Bk

3 Contents Contents How to use this book 4 The A level examination 6 Unit 3: Oscillations and nuclei Overview 3.1 Circular motion 10 3.2 Vibrations 21 3.3 Kinetic theory 38 3.4 Thermal physics 51 3.5 Nuclear decay 66 3.6 Nuclear energy 83 Unit 4: Fields and options Overview 4.1 Capacitors and the uniform electric field 98 4.2 Electrostatic and gravitational fields of force 115 4.3 Orbits and the wider universe 131 4.4 The magnetic field 149 4.5 Electromagnetic induction 168 Options Overview A Alternating currents 181 B Medical physics 204 C The physics of sports 220 D Energy and the environment 235 Mathematical and data-handling skills Overview 252 Exam practice questions 264 Answers Self-test 277 Exercises 286 Exam practice questions 294 Specification matching grid 300 Index 302