Summary

• Description:

  The MS Word document comprises RCEA JOINT 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 Physics Paper 1 theory mock examination assessing mechanics, thermal physics, fluid dynamics, and properties of matter. It evaluates physical problem-solving, instrument readings, momentum conservation, circular mechanics, thermodynamics, and gas law verifications.

  • Month Administered: July 2026
  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 16 (Questions 1 - 16)
  • Structure: Section A (25 marks, Questions 1–11, compulsory short-answer questions) and Section B (55 marks, Questions 12–16, compulsory multi-part data and analytical questions).

  It covers the following topics:

  • Section A
    • Measurements and error: micrometer screw gauge zero errors and true diameter measurements
    • Gravitation: planetary weight and mass calculations on Earth versus Jupiter
    • Fluid pressure: comparative liquid columns in mercury and paraffin barometers
    • Moments of a force: turning moments and center of gravity of cantilevered rectangular blocks
    • Particulate nature of matter: temperature effects on gas diffusion
    • Thermal physics: heat conductivity differences between metal and wood blocks and thermometer calibration
    • Machines: sketch and velocity ratio of pulley systems
    • Equilibrium and stability: wide heavy base stability of Bunsen burners
    • Hooke's Law: composite series-parallel spring systems and extension calculations
  • Section B
    • Linear momentum and projectile motion: elastic versus inelastic collisions, common velocity after impact, and horizontal projection from cliffs
    • Circular motion: road banking principles, angular velocity, period, and string tensions at the top and bottom of vertical circles
    • Fluid mechanics: Law of Floatation, upthrust and lifting force on helium balloons, and hydrometer calibration sensitivity
    • Gas laws: Charles's Law experimental verification, functions of concentrated sulfuric acid index, and temperature-volume gas expansions
    • Calorimetry and phase change: specific latent heat of vaporization of steam using copper calorimeters and heat gain/loss balance equations
• File Size:

  685.41 KB
• Length:

  10 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Physics
• Posted By:

  Caleb_Peter

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