Summary

• Description:

  The PDF document comprises KALA Joint Trials 2024 Physics Paper 3 Exam with Answers and Marking Scheme. The marking scheme is in a different document.

  It was a KCSE Physics Paper 3 (232/3) Joint Trial practical examination administered in July 2024.

  • Duration: 2 Hours 30 Minutes
  • Total Marks: 40
  • Number of Questions: 2 Practical questions
  • Paper Structure: Question 1 and Question 2, each containing multiple experimental tasks.

  The paper consisted of practical experiments requiring learners to take measurements, record observations, perform calculations, plot graphs, and interpret experimental results.

  It covered the following experimental topics and practical skills:

  • Torsional oscillations of a wire using a suspended mass
  • Measurement of wire diameter using a micrometer screw gauge
  • Determination of frequency and calculation involving oscillation periods
  • Graphical analysis and determination of experimental constants
  • Application of the principle of moments using a half metre rule and suspended masses
  • Determination of centre of gravity and balancing conditions
  • Use of lenses and plane mirrors to observe image coincidence and eliminate parallax
  • Measurement of distances in optical experiments involving a bi-convex lens
  • Electrical circuit setup involving dry cells, resistor, capacitor, voltmeter, and milliammeter
  • Determination of electrical resistance using voltage and current readings
  • Charging and discharging of a capacitor in an RC circuit
  • Observation of exponential decay of current during capacitor discharge
  • Recording current and time data to plot a current–time graph
  • Optical experiment using a triangular prism to determine angle of deviation
  • Use of optical pins, protractor, and soft board in ray tracing experiments
  • Calculation of refractive index constant using measured angles
• File Size:

  2.27 MB
• Length:

  8 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  PHYSICS
• Posted By:

  Caleb_Peter

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