Summary

• Description:

  The PDF document comprises MUSJET Physics Paper 3 2026 Pre-Mock Exam with Marking Scheme. The marking scheme is in a different document.

  It was a KCSE Physics Paper 3 practical examination testing practical laboratory competencies in mechanics, simple harmonic motion, and geometrical optics. Practicing with this exam document and marking scheme guidelines prepares candidates effectively for practical examinations.

  • Month Administered: Term 2 2026
  • Duration: 2 Hours 15 Minutes
  • Total Marks: 40
  • Number of Questions: 2 (Questions 1–2)
  • Structure: Practical laboratory examination consisting of two compulsory experiment setups (Mechanics and Optics)

  It covers the following topics:

  • Question 1: Mechanics (Simple Pendulum Experiment)
    • Precision measurement of pendulum bob diameter using Vernier calipers
    • Timing periodic oscillations across varying suspension lengths ($L = 20\text{ cm}$ to $80\text{ cm}$)
    • Data tabulation for period ($T$) and $T^2$
    • Graphical plotting of $T^2$ against length $L$
    • Gradient calculation and experimental determination of acceleration due to gravity ($g$)
  • Question 2: Geometrical Optics (Concave Mirror Experiment)
    • Optical alignment involving candle flame source, screen, and concave mirror
    • Experimental determination of object distance ($u$) and image distance ($v$) for varying screen offsets ($x = 5.0\text{ cm}$ to $30.0\text{ cm}$)
    • Tabulation of $(u+v)$ and $uv$ values
    • Graphical plotting of $(u+v)$ against $uv$
    • Slope calculation and determination of mirror focal length ($f$) and radius of curvature ($R$)
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  PHYSICS
• Posted By:

  Caleb_Peter

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