Key term for Edexcel GCSE Physics, used in Sound and Ultrasound.
Regions in a longitudinal wave where particles are furthest apart, creating areas of low pressure.
Rarefactions appears in Edexcel GCSE Physics revision content for Waves, especially Sound and Ultrasound and Sound Conversion and Hearing.
Create a free account to access Edexcel GCSE Physics revision notes, track progress, and practise related key terms.
