Physics for IGCSE & O level - Waves And Sounds (Section 7 - No. 12)
In the context of sound waves, what are compressions and rarefactions?
Regions of low and high pitch.
Regions of high and low amplitude.
Regions of high and low pressure.
Regions of different wavelengths.
Selitys
Compressions and rarefactions are regions of high and low pressure.