Waves are used to detect and to explore structures that are hidden from direct observation.
Explain how differences in the speed, the absorption and the reflection of waves in different materials make this possible.
Explain why S-waves provide evidence that part of the Earth's core is liquid, but P-waves do not.
40 exam-style questions on AQA GCSE Physics 6.1 Waves in air, fluids and solids, covering 6.1.1 Transverse and longitudinal waves, 6.1.2 Properties of waves, 6.1.3 Reflection of waves, 6.1.4 Sound waves (HT only), and 6.1.5 Waves for detection and exploration (HT only). Each one has a worked solution and a mark scheme showing where the marks go.