Summary

• Description:

  The MS Word document comprises Starehe Girls’ Centre Physics Paper 3 2025 Mock Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  The exam paper is a Physics practical paper consisting of two compulsory questions. It is marked out of a total of 40 marks and should be completed by learners within a duration of 2½ hours, with the first 15 minutes allocated for reading.

  The paper is intended for Form 4 learners and assesses experimental skills, accurate observation, data handling, graph plotting, and application of physics principles in line with the KCSE Physics practical syllabus.

  It covers the following practical areas:

  • Optics practical using a glass block, plane mirror, and pins
  • Taking measurements, recording results, and plotting graphs from experimental data
  • Determining values from graphs through extrapolation and interpretation
  • Principle of flotation and density-related calculations using a floating boiling tube
  • Use of vernier calipers for diameter measurements
  • Cooling/heating experiment using water, thermometer, and stopwatch
  • Temperature-time data collection and processing
  • Logarithmic transformation of data and plotting semi-log style graphs
  • Determining constants from graphs (log intercepts and antilogs)
  • Estimating surrounding temperature from experimental relationships

  Candidates are required to record observations clearly, present accurate tables, draw well-labeled graphs, use results appropriately, and apply correct physics principles and calculations throughout the practical examination.

• File Size:

  1.37 MB
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  PHYSICS
• Posted By:

  Caleb_Peter

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