CAIE IGCSE Physics 3.4.12 Uses of Ultrasound in Non Destructive Questions

Practise applying ultrasound to medical scanning, sonar and non-destructive testing, including pulse-echo distance calculations.

Exam points

Use echo time and wave speed to calculate depth or distance by halving the round trip, describe a transducer sending and receiving ultrasound from an internal flaw, and distinguish soft-tissue scans, sonar and metal testing.

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Fig. 8.1 shows images produced during two different medical scanning procedures.

Fig. 8.1

Describe three similarities or differences between the use of ultrasound and X-rays in medical scanning procedures.

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