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SACE (South Australia) Sound — practice questions

Explore 1 free Sound questions in SACE (South Australia) Science. Open each question or exercise to read its content, reference answers and available explanation.

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Sound questions and exercises with answers

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Questions
  1. Answer
    20
    Question
    Lowest frequency in hertz that a human ear can hear
  2. Answer
    20000
    Question
    Highest frequency in hertz that a human ear can hear
  3. Answer
    40
    Question
    Highest frequency in kilohertz used by an ultrasonic cleaner
  4. Answer
    3
    Question
    Number of main sections the human ear is divided into
Instructions
Work out each answer, key it in on the pad, then tap Enter.
_Source: Siyavula Physical Sciences Grade 10 (CC BY 4.0), Chapter 10 Sound_

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