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4 Cards in this Set
- Front
- Back
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Ultrasound |
Ultrasound is partially reflected at a boundary between to medians Its useful for different things like pre natal scans of a foetus and sonar Infrasound is sound with frequencies less than 20 HZ Ultrasound is sound with frequencies greater than 20000 HZ |
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Calculating distance using ultrasound |
speed = distance / time Remember to divide by two, otherwise you have worked out there and back |
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The Earth's Structure |
Crust, Mantle, Outer and Inner Core |
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Seismic Waves |
P waves are longitudinal and travel through solids and liquids They travel faster than S
S waves are Transverse and travel through solids. They travel slower than P |
