A geologist uses a slow-motion camera to count the individual low-frequency surface ripples (infrasound) propagating through a muddy basin after a minor tremor. A colleague suggests using the same visual tracking and manual counting method to measure the frequency of the ultrasound waves emitted by a bat during navigation.
Explain why this visual manual counting method would not be suitable for determining the frequency of the bat's ultrasound emissions.
35 exam-style questions on Edexcel GCSE Physics 4.3 Sound, ultrasound and infrasound, covering 4.3.1 Sound waves, vibrations and the human ear, 4.3.2 Ultrasound and infrasound, 4.3.3 Uses of ultrasound and infrasound, and 4.3.4 Sound waves passing between media. Each one has a worked solution and a mark scheme showing where the marks go.