What is a compression in a sound wave travelling through air?
A region where the air particles are further apart than normal
A region where the air particles are closer together than normal
A region where the air particles are vibrating faster than normal
A region where the air particles are vibrating slower than normal
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.