A ground vibrator produces a repeating pattern of seismic waves in rock. A detector is placed some distance away, and sensors monitor the motion of selected rock particles between the vibrator and the detector.
Which statement correctly describes what happens as the waves pass through the rock?
No energy reaches the detector, because each monitored particle oscillates about a fixed position.
Energy reaches the detector, but the pattern is lost because no rock travels to the detector.
The pattern is recorded at the detector, while each monitored particle oscillates about a fixed position.
The pattern is recorded at the detector, because rock particles travel from the vibrator to the detector.
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.