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Learning objective

Recognize that sound waves require a medium to travel through.

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

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Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE Combined ScienceWavesCore content

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Quick explanation

Recognize that sound waves require a medium to travel through

  • This point belongs to Sound, especially Sound outcomes.
  • You need to be able to recognize that sound waves require a medium to travel through.
  • The key ideas to know are Identify.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Identify

Why it matters

This objective helps connect Sound outcomes to exam-style questions, flashcards, and revision notes for Sound.

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Practice Questions7 linked questions

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Paper 3 structured question: Sound

Paper 3Theory (Core)2 marks

Description

Sound Wave Propagation

Sound waves require a medium to travel. They cannot propagate in a vacuum, and their speed varies depending on the medium.

  1. a

    Explain why sound cannot travel through a vacuum.

    Aim for approximately 2 distinct marking points.

    [2]
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Cambridge IGCSECombined Science resources