Two microphones are 1.02 m apart along the direction of a sound pulse. The pulse reaches the second microphone 3.0 ms after the first. What is the measured speed of sound?
306 m/s306\ \mathrm{m/s}306 m/s
680 m/s680\ \mathrm{m/s}680 m/s
170 m/s170\ \mathrm{m/s}170 m/s
340 m/s340\ \mathrm{m/s}340 m/s
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.