Summary

• Description:

  The MS Word document comprises KALA Trial Physics Paper 2 2026 Mock Exam with 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 2 (232/2) mock examination prepared for Form 4 candidates.

  This advanced paper evaluates key proficiencies in geometric optics, wave theory, electrostatics, current electricity, electromagnetism, electronics, and atomic physics, complete with structured questions designed for effective exam revision.

  • Month Administered: July 2026
  • Duration: 2 Hours
  • Total Marks: 80 Marks
  • Number of Questions: 18 Questions (Questions 1 - 18)
  • Structure: Section A (25 Marks, Questions 1-13, compulsory short problems) and Section B (55 Marks, Questions 14-18, compulsory structured long-form questions)

  It covers the following topics:

  • Section A:
    • Geometric optics: comparison of virtual images in plane vs concave mirrors, real and apparent depth derivation, and focal length calculations for curved mirrors
    • Cells and accumulators: maintenance of lead-acid accumulators during charging
    • Magnetic effect of electric current: Fleming's left-hand motor rule on current-carrying conductors in magnetic fields
    • Electrostatics: leaf divergence in gold-leaf electroscopes using charged glass rods
    • Sound waves: echo method to determine the speed of sound in air
    • Wave motion: refraction of plane progressive water waves across deep-to-shallow boundaries
    • Current electricity: resistance calculations of electric lamps and three-pin plug safety earthing pins
    • Cathode Ray Oscilloscope: electron gun, deflecting plates, and grid brightness adjustment
    • Electromagnetic spectrum: identification and applications of electromagnetic radiations
    • Radioactivity: identifying alpha radiation particle tracks in a Wilson cloud chamber
  • Section B:
    • Current electricity: Ohm's law, causes of electrical resistance, series/parallel combinations, and graphical determination of internal resistance and EMF
    • X-rays and the National Grid: production of X-rays in Coolidge tubes, metal shielding, step-up/step-down transformers, circuit breakers, and domestic electrical consumption cost calculations
    • Electromagnetic induction: mutual induction demonstrations, ideal transformer current/voltage formulas, and capacitor network effective capacitance and charge calculations
    • Photoelectric effect: factors affecting photoelectron emission speed, photocell circuitry, intensity effects, and graphical evaluation of Planck's constant and threshold wavelength
    • Semiconductors and physical optics: p-type doping using trivalent impurities, forward/reverse bias depletion layer effects in diodes, Young's double-slit interference, and white light fringe dispersion
• File Size:

  2.18 MB
• Length:

  17 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Physics
• Posted By:

  Caleb_Peter

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