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Learning objective

Recall and apply the formula for wave speed, represented as v = f λ.

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 PhysicsSubject contentCore content

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Quick explanation

Recall and apply the formula for wave speed, represented as v = f λ

  • This point belongs to General properties of waves, especially General properties of waves outcomes.
  • You need to be able to recall and apply the formula for wave speed, represented as v = f λ.
  • The key ideas to know are Recall and Use.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

RecallUse

Why it matters

This objective helps connect General properties of waves outcomes to exam-style questions, flashcards, and revision notes for General properties of waves.

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Paper 3 structured question: General properties of waves

Paper 3Theory (Core)1 marks

Description

Wave Speed in Different Media

A sound wave travels through air and water. The frequency of the sound wave is 500 Hz in both media. The wavelength in air is 0.68 m, while in water, it is 1.5 m.

  1. a

    State the formula for calculating wave speed.

    Aim for approximately 1 distinct marking point.

    [1]
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