Summary

• Description:

  The MS Word document comprises MASENO SCHOOL Physics Paper 1 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 Form 4 Physics Paper 1 theory examination.

  This paper tests core competencies in classical mechanics, thermal physics, fluid dynamics, properties of matter, and gas laws through rigorous qualitative reasoning and quantitative calculations.

  • Total Marks: 80 marks
  • Number of Questions: 19 questions (Questions 1 – 19)
  • Structure: Section A (25 marks, short-answer questions 1–14) and Section B (55 marks, structured multi-part questions 15–19)

  It covers the following topics:

  • Section A:
    • Length measurement accuracy and circumference/diameter relationships
    • Indirect pitch measurement of threaded bolts using a metre rule
    • Pressure distribution beneath wide vehicular tyres
    • Atmospheric pressure limitations on fluid suction in space/lunar environments
    • Particulate nature of matter and molecular diffusion in liquids
    • Thermal convection in liquids and thermal conductivity of water
    • Capillarity and meniscus height variation with tube diameter
    • Principles of density and Archimedes' principle in solid versus hollow spheres
    • Selection of micrometer screw gauges for precision paper thickness
    • Bernoulli's principle and pressure-speed dynamics in fluid flow
    • States of equilibrium (stable, unstable, neutral) for rolling bodies
    • Boyle's law isothermal curves at varying temperatures
    • Centripetal motion and tangential inertia paths upon string breakage
    • Hooke's law calibration and lunar gravitational field strength determination
  • Section B:
    • Uniform circular motion: Definitions of angular velocity and centripetal acceleration, dynamic forces, and spring balance readings
    • Gas laws: Pressure law verification setup, absolute temperature conversions, and trapped air columns under mercury threads
    • Machines and mechanics: Velocity ratio, mechanical advantage, single movable pulley designs, and moment balance on wheelbarrows
    • Work, energy, and power: Gravitational potential energy and kinetic energy transformations of vertical projectiles
    • Floatation and upthrust: Law of floatation, hydrometer equilibrium, and tension variations on submerged buoyant corks
    • Hydrodynamics: Streamline versus turbulent flow, equation of continuity flow rates, and hydrostatic head pressure jets
• File Size:

  151.87 KB
• Length:

  10 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Physics
• Posted By:

  Caleb_Peter

Enter your details below to initiate a payment using MPESA.