Summary

• Description:

  The MS Word document comprises CEKENAS Physics Paper 1 2026 Pre-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 CEKENAS Form 4 Physics Paper 1 examination evaluating mechanics, thermodynamics, fluid dynamics, and properties of matter. Essential for sharpening problem-solving skills for KCSE candidates, this paper is available in PDF download format with marking scheme guidelines.

  • Month Administered: March/April 2026
  • Duration: 2 Hours
  • Total Marks: 80 Marks
  • Number of Questions: 17 (Questions 1–17)
  • Structure: Section A (25 marks, compulsory short Questions 1–12) and Section B (55 marks, compulsory long Questions 13–17).

  It covers the following topics:

  • Section A
    • Measurements and vernier calipers with zero error
    • Surface tension phenomena in soap films
    • Moments and equilibrium of a uniform bar
    • Particulate nature of matter and Brownian motion
    • Heat transfer and convection currents in water
    • Atmospheric pressure and mercury barometers (Calculating mountain elevation)
    • Thermal expansion of glass and liquids
    • Stability and center of gravity in rigid bodies
    • Hooke's law and spring constant comparison
    • Fluid flow and Bernoulli's principle in suspended balloons
    • Energy conversions in a bicycle dynamo
    • Work, energy, and power calculations
  • Section B
    • Gas laws (Boyle's law experimental verification, $PV=k$ graphical analysis)
    • Thermal physics (Regelation, boiling point atmospheric pressure dependence, specific heat capacity determination via electrical method, method of mixtures)
    • Linear momentum and impulse (Elastic vs. inelastic collisions, head-on collision calculations)
    • Fluid dynamics and viscosity (Viscous drag, forces acting on a falling sphere, terminal velocity graph)
    • Uniform circular motion (Centripetal force, vertical circle motion, string tension, projectile motion after snap, angular velocity calculation)
    • Buoyancy and floatation (Law of floatation, upthrust, tension in submerged cork, spring balance readings)
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  PHYSICS
• Posted By:

  Caleb_Peter

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