Summary

• Description:

  The PDF document comprises ACK Joint Examination Physics Paper 1 2026 Pre-Mock Exam with Marking Scheme. The marking scheme is in a different document.

  It was an ACK Joint Evaluation Physics Paper 1 examination evaluating candidates across mechanics, thermodynamics, fluid pressure, and wave motion. This comprehensive test paper is an essential revision tool for candidates aiming to master physical principles and quantitative calculations for KCSE Physics.

  Month Administered: July 2026
  Duration: 2 Hours
  Total Marks: 80 Marks
  Structure: Section A (25 marks), Section B (55 marks)

  It covers the following topics:

  Section A (25 Marks)

  • Length and radius measurements using string turns on rulers and pens

  • Principle of moments: weightless beams in mechanical equilibrium

  • Useful power measurement parameters for climbing ladders

  • Manometer liquid replacement and column height changes

  • Energy losses during bouncing ball impacts

  • Surface tension: floating steel needles and detergent effects

  • Moments and stability: bottle tipping force calculations

  • Terminal velocity in viscous liquids

  • Gas laws: volume and pressure changes in rubber toys (Boyle's Law)

  • Intermolecular spaces in liquid solutions

  • Specific heat capacity comparisons (water vs. oil heating)

  • Non-uniform rods and center of gravity determination

  Section B (55 Marks)

  • Kinematics and Motion: Velocity-time graphs, reaction time, braking distance, deceleration, and factors affecting braking distance

  • Circular Motion: Uniform circular motion acceleration, string tension calculations, and causes of centripetal force

  • Fluid Pressure and Gas Laws: U-tube manometer trapped gas pressure, kinetic theory of gases, and pressure law calculations

  • Dynamics and Newton's Laws: Driving force versus resistive force, resultant force, vehicle acceleration (F = ma), and stopping distance

  • Thermal Physics and Heat Transfer: Heat transfer calculations (Q = mcΔT, P = E/t), final water temperature, and thermal assumptions

  • Pressure and Density: Pressure exerted by stacked metal plates (P = F/A), contact area calculations, and density invariance

  • Work, Energy and Power: Electric motor energy conversion, electrical efficiency, gravitational potential energy (mgh), and energy losses

  • Archimedes' Principle and Buoyancy: Upthrust in Eureka cans, displaced liquid volume, liquid density, solid block density, and minimum submergence force

• File Size:

  835.45 KB
• Length:

  14 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  PHYSICS
• Posted By:

  Caleb_Peter

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