Summary

• Description:

  The MS Word document comprises LENANA SCHOOL NAIROBI INTERNAL EXAMS Physics Paper 3 2026 Mock Exam with Answers (Marking Scheme). The PDF version is also available upon your request. The marking scheme is in a different document.

  It was a KCSE Physics Paper 3 examination.

  This practical examination tests precision measurement, experimental manipulation, data tabulations, and graphical interpretation. It examines physical mechanics, current electricity parameters, and thermal cooling rates.

  • Duration: 2½ hours
  • Total Marks: 40
  • Number of Questions: 2 (Questions 1-2)
  • Structure: Question 1 (Part A: Mechanics and Part B: Current Electricity, 20 marks) and Question 2 (Thermal Physics, 20 marks).

  It covers the following topics:

  • Question 1 (Part A - Mechanics):
    • Precision measurement using vernier calipers to find volume and thickness
    • Principle of moments on a balanced meter rule to determine mass and density of glass microscope slides
  • Question 1 (Part B - Current Electricity):
    • Circuit assembly with potential dividers and resistance wires
    • Measurement of potential difference, current, and wire diameter using a micrometer screw gauge to determine electrical resistivity
  • Question 2 (Thermal Physics):
    • Investigation of heat loss and cooling rates of thermometers in air versus boiling water
    • Tabulation of cooling temperatures at timed intervals, temperature-time curve plotting, and comparative cooling ratios
• File Size:

  507.87 KB
• Length:

  7 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Physics
• Posted By:

  Caleb_Peter

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