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Edexcel A-Level Physics AS 3.3.5 Controlling Variables Questions

Practise Edexcel A-Level Physics controlling variables by identifying constants, explaining why they matter and describing practical controls.

Syllabus
Pearson Edexcel International Advanced Subsidiary/Advanced Level
Course
Physics XPH11/YPH11
Level
AS

Exam points

  • identify suitable control variables such as mass, volume, distance or background light
  • explain why a controlled variable affects readings, such as inverse-square light intensity
  • describe how to keep a control variable constant using balances, measuring cylinders or setup positions

Edexcel A-Level Physics AS 3.3.5 Controlling Variables Questions question 1

[Maximum number: 2]

A student is investigating the effect of temperature on the viscosity of oil by measuring how fast the oil flows through a funnel. He uses the apparatus shown.

Figure for Question Edexcel A-Level Physics AS 3.3.5 Controlling Variables Questions question 1 — Edexcel A-Level Physics AS

Question (a)

(a)

Identify one control variable in this investigation.

[ 1 ]

Question (b)

(b)

Describe how this variable can be controlled.

[ 1 ]
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