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Cambridge IGCSE Physics practice

Paper 3 structured question: Sound

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Sound

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Paper 3Theory (Core)2 marks

Ultrasound is utilized in various applications due to its properties.

Description

Applications of Ultrasound

Ultrasound is used in medical imaging, cleaning, and material testing.

  1. a

    Define ultrasound and give one application.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 3 structured question: Sound

Paper 3Theory (Core)1 marks

Description

Ultrasound Frequencies

Ultrasound refers to sound waves that have frequencies above 20 kHz. These waves are used in medical imaging and industrial applications.

  1. a

    State the frequency range that defines ultrasound.

    Aim for approximately 1 distinct marking point.

    [1]