Summary

• Description:

  The MS Word document comprises MURANG'A EAST JOINT Physics Paper 2 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 232/2 examination.

  This paper examines candidates on electrostatics, wave theory, geometric optics, direct current circuitry, electromagnetism, electromagnetic induction, X-rays, and modern atomic/nuclear physics.

  • Duration: 2 Hours
  • Total Marks: 80 Marks
  • Number of Questions: 18 Questions (Section A: Questions 1 - 12; Section B: Questions 13 - 18)
  • Structure: Section A (25 Marks, Questions 1–12, compulsory short-answer questions) and Section B (55 Marks, Questions 13–18, compulsory multi-step structured questions).

  It covers the following topics:

  • Section A:
    • Current electricity: Polarization effects in simple primary cells, and heating element properties (Nichrome vs. copper)
    • Magnetism: Soft iron vs. steel in electromagnet cores
    • Waves and sound: Propagation of mechanical sound waves, wave velocity-displacement-time calculations, and wavefront refraction across shallow water boundaries
    • Geometrical optics: Plane mirror rotation angles, total internal reflection through 45-degree glass prisms, and corrective lenses for optical eye defects
    • Electrostatics: Gold leaf electroscope leaf divergence under induced charges
    • Nuclear physics: Balancing radioactive alpha and beta decay equations
  • Section B:
    • Cathode Ray Oscilloscope: Applications, thermionic electron emission mechanisms, control grid brightness regulation, screen earthing safety, and parasitic X-ray formation
    • DC Circuit network analysis: Series-parallel resistor combinations, internal resistance, terminal potential difference, and branch current calculations
    • Electrostatic induction: Polythene rod electron transfer, electroscope leaf divergence factors, and lightning conductor components
    • Radioactivity: Nuclear fission vs. nuclear fusion distinctions, atomic mass/number notation, alpha emission equations, and temperature independence of half-lives
    • Electromagnetic induction and transformers: DC input galvanometer responses, transformer energy losses and mitigation (eddy currents, hysteresis, resistance), turns ratio calculations, and primary current determination
    • X-ray technology: Penetration depth (hardness) factors, filament current adjustments for beam intensity, operating potential adjustments for hardness, anode copper cooling, and maximum kinetic energy calculations of accelerated electrons
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  PHYSICS
• Posted By:

  Caleb_Peter

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