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Learning objective

Remember and apply the formula for calculating the change in pressure at a certain depth in a liquid, given by ∆p = g × h × ρ.

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

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE PhysicsMotion, forces and energySupplement content

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Quick explanation

Remember and apply the formula for calculating the change in pressure at a certain depth in a liquid, given by ∆p = g × h × ρ

  • This point belongs to Pressure, especially Pressure outcomes.
  • You need to be able to remember and apply the formula for calculating the change in pressure at a certain depth in a liquid, given by ∆p = g × h × ρ.
  • 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 Pressure outcomes to exam-style questions, flashcards, and revision notes for Pressure.

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Flashcards10 linked cards

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Practice Questions7 linked questions

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Paper 4 structured question: Pressure

Paper 4Theory (Extended)1 marks

Description

Pressure Change in a Liquid

A liquid has a density of 1000 kg/m³. Calculate the change in pressure at a depth of 3 meters.

  1. a

    State the formula used to calculate the change in pressure at a certain depth in a liquid.

    Aim for approximately 1 distinct marking point.

    [1]
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