Ultrasound (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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Ultrasound at boundary between two media
Ultrasound at boundary between two media
Partially reflected back
Remainder of ultrasound at boundary
Remainder of ultrasound at boundary
Continues and passes through
Speed of ultrasound waves
Speed of ultrasound waves
Constant
General use of ultrasound
General use of ultrasound
Imaging under surfaces
Medical use of ultrasound
Medical use of ultrasound
Scanning human fetus (non-invasive imaging)
Infrasound frequency
Infrasound frequency
Lower than Hz
Alternative name for infrasound
Alternative name for infrasound
Seismic waves
Two types of seismic waves
Two types of seismic waves
P and S waves
P waves type and media they pass through
P waves type and media they pass through
Longitudinal; pass through solids and liquids
S waves type and media they pass through
S waves type and media they pass through
Transverse; only pass through solids
Waves detected opposite side of Earth from earthquake
Waves detected opposite side of Earth from earthquake
Only P waves
State of Earth's core (from seismic wave evidence)
State of Earth's core (from seismic wave evidence)
Liquid (S waves can't penetrate it)
How sonar calculates depth
How sonar calculates depth
Time for ultrasound pulse to reflect and return to ship
Uses of sonar
Uses of sonar
Detect shoal of fish; measure distance to seabed