A stringed musical instrument has a vibrating string coupled to a wooden soundboard. The soundboard produces a sound wave in the surrounding air.
For the same amplitude of string vibration, the sound intensity produced at very high frequencies is much smaller than at middle frequencies.
Suggest why the sound intensity is smaller at very high frequencies.
112 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.