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Define ultrasound as sound waves that have frequencies above 20 kHz.

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  • Practise with linked questions.
Cambridge IGCSE PhysicsSubject contentCore content

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Define ultrasound as sound waves that have frequencies above 20 kHz

  • This point belongs to Sound, especially Sound outcomes.
  • You need to be able to define ultrasound as sound waves that have frequencies above 20 kHz.
  • The key ideas to know are Define.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Define

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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]
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