Edexcel GCSE Physics · 1PH0
Specification 4.15P · Paper 1
Revise: Uses of Ultrasound/InfrasoundEarthquakes also produce S-waves, which are transverse seismic waves rather than infrasound.
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GCSE Physics · key term
Earthquake waves that travel through the Earth and provide evidence about its internal layers.
Used by Edexcel and OCR
Specification 4.15P · Paper 1
Revise: Uses of Ultrasound/InfrasoundEarthquakes also produce S-waves, which are transverse seismic waves rather than infrasound.
Paper 1, Paper 2
Waves produced by an earthquake that travel through the Earth and can reveal its internal structure.
Revise: Wave Applications in Detection and ExplorationAn earthquake sends seismic waves through the Earth. Instruments called seismometers record when the waves arrive and how strongly the ground moves. Two important types behave differently: faster P-waves travel through solids and liquids, whereas S-waves travel through solids but cannot travel through liquids.
Do not call S-waves infrasound: they are transverse seismic waves. Low-frequency P-waves provide the relevant link with infrasound.
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