In non-destructive engineering tests, ultrasonic transducers propagate both shear waves (transverse waves) and compression waves (longitudinal waves) through mechanical steel beams to identify subsurface micro-cracks.
Compare these two wave types by describing the direction of particle oscillations relative to the direction of energy propagation for each wave type.
64 exam-style questions on Edexcel GCSE Physics 4.1 Wave properties. Each one has a worked solution and a mark scheme showing where the marks go.