A motor makes one end of a long elastic strip oscillate, producing waves along the strip. A recording of the strip is displayed with all lengths enlarged by a factor of 2.0.
| Measurement | Value |
|---|---|
| number of oscillations made by the motor | 18 |
| time taken for these oscillations | 2.4 s |
| displayed distance from the first crest to the seventh consecutive crest | 1.44 m |
Calculate the wave speed along the strip.
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.