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Edexcel A-Level Physics Apparatus Details

Review apparatus details in Edexcel A-Level Physics through instrument choice, resolution reasoning, apparatus dimensions and method details.

Syllabus
Pearson Edexcel International Advanced Subsidiary/Advanced Level
Course
Physics XPH11/YPH11
Level
A2

Exam points

  • justify instrument choice by comparing object size with resolution, such as vernier calipers for diameter
  • state practical apparatus or method changes that alter conditions such as solar-cell temperature

6.3.1 - Apparatus details question 1

[Maximum number: 2]

A student added small lead spheres to a test tube. The student placed the test tube in a small beaker of water. The test tube floated as shown.

Figure for Question 6.3.1 - Apparatus details question 1 — Edexcel A-Level Physics A2

The student gave the test tube a small vertical displacement. The test tube then oscillated vertically.

The student estimated that the diameter of the test tube was approximately 2 cm .

Explain why vernier calipers are a suitable instrument to measure the diameter. Your answer should include a calculation.

Figure for Question 6.3.1 - Apparatus details question 1 — Edexcel A-Level Physics A2
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