A sound wave travels horizontally through air. How do the air particles move?
Backwards and forwards parallel to the wave direction
Backwards and forwards perpendicular to the wave direction
Continuously forwards parallel to the wave direction
Continuously upwards perpendicular to the wave direction
112 exam-style questions on Edexcel GCSE Physics 4.1 Wave properties, covering 4.1.1 Waves transfer energy and information, 4.1.2 Frequency, wavelength, amplitude, period and wavefronts, 4.1.3 Longitudinal and transverse waves, 4.1.4 The wave speed equations, 4.1.5 Measuring wave velocity, and 4.1.6 Calculating depth or distance from waves. Each one has a worked solution and a mark scheme showing where the marks go.