Interactive practical

Viscosity using a falling ball

Measure spheres with a micrometer, compare speeds over successive sections of a liquid column and determine viscosity using Stokes’ law.

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Practice: Determining viscosity by a falling-ball method

Pearson Edexcel 9PH0 — this practical matches your selected course; the questions check the method, data handling and practical skills.

Check your answers as you work. For written questions, use the marking points to assess your response.

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2 of 2 available questions match the selected filters. This session contains 2 questions.

Question 1 · 1 mark · Foundation · Practical · Diagnostic

Which forces balance at terminal velocity for a ball falling through a liquid?

Question 2 · 3 marks · Standard · Practical · Practical method

Viscosity using a falling ball

Practice: Determining viscosity by a falling-ball method

Which forces balance at terminal velocity for a ball falling through a liquid?

Explain how you would check that the ball has reached terminal velocity before timing.