Chapter 3: Density, Pressure and Upthrust

A-level PhysicsModule 3: Forces & Motion7 topicsHigher

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Module 3: Forces and Motion: Density, Pressure and Upthrust - Authored Long Answer Questions

Examiner-style long-answer practice with automatic marking, improvement advice and ProofCoach tracking.

4 questions25 marks37.5 min

standard / hard

6 marksdescribestandardOCR A

For Density, Pressure and Upthrust, describe how density, pressure and Archimedes principle applies to wooden block floating in salt water.

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6 markscalculatehardOCR A

Using wooden block floating in salt water, calculate a relevant OCR A Density, Pressure and Upthrust quantity and explain the physical or chemical meaning of the answer. Show equation, substitution, answer and unit.

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7 marksexplainhardOCR A

Density, Pressure and Upthrust - data from: wooden block floating in salt water

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The graph for Density, Pressure and Upthrust shows data from wooden block floating in salt water. Explain the pattern using the data and relevant physics principles.

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6 marksevaluatestandardOCR A

In wooden block floating in salt water, evaluate the experimental method or model assumptions used when applying density, pressure and Archimedes principle.

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2. Forces, Free-Body Diagrams, Moments and Equilibrium

4. Work, Energy and Power

Key learning objectives

Understand the key principles behind Density, Pressure and Upthrust.
Apply these ideas to exam-style questions.
Recall the essential definitions and key terms.