An automatic monitoring system records waves travelling through a harbour. Its measurements are shown in the table.
| Measurement | Result |
|---|---|
| Distance from the first crest to the seventh consecutive crest | 72 m |
| Time from the arrival of the first crest to the arrival of the fifth consecutive crest at a fixed sensor | 24 s |
Calculate the wave speed.
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.