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Learning objective

Explain how variations in amplitude and frequency influence the loudness and pitch of sound waves.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Practise with linked questions.
Cambridge IGCSE Combined ScienceWavesCore content

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Quick explanation

Explain how variations in amplitude and frequency influence the loudness and pitch of sound waves

  • This point belongs to Sound, especially Sound outcomes.
  • You need to be able to explain how variations in amplitude and frequency influence the loudness and pitch of sound waves.
  • The key ideas to know are Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Describe

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Paper 3 structured question: Sound

Paper 3Theory (Core)3 marks

Description

Sound Wave Characteristics

Sound waves can be described by their amplitude and frequency. Amplitude is related to how loud a sound is, while frequency determines the pitch of the sound.

  1. a

    Explain how variations in amplitude and frequency influence the loudness and pitch of sound waves.

    Aim for approximately 3 distinct marking points.

    [3]
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Cambridge IGCSECombined Science resources