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AS standard Support: Medium Topics: Practical Skills
Describe how you would accurately determine the density of a small, irregularly shaped stone using standard laboratory equipment. Your answer should explain which measurements you would take, the equipment you would use, and how you would reduce the uncertainty in your result.
Aim for 100–200 words Write in clear, linked sentences using correct physics terms.
Scaffolding hints
  • Measure the mass of the stone using a calibrated electronic balance.
  • Measure the volume by displacement: lower the stone into water in a measuring cylinder (or eureka can) and record the volume of water displaced.
Your answer

Write a clear, structured response. Include definitions, equations with units, and a concluding statement.

Drawing board
Select a question diagram to draw on:
Intro ✓ Key law/definition ✓ Cause → effect ✓ Equation applied ✓ Units ✓ Conclusion ✓

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