Summary

• Description:

  The PDF document comprises Mirror Jet 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) Practical examination administered during the Mirror Jet Exams Term Two 2024 series.

  • Duration: 2 Hours 30 Minutes
  • Total Marks: 40
  • Number of Questions: 2 practical questions
  • Instruction: Candidates answered all questions and recorded observations, calculations, and graphs in the spaces provided in the question paper.

  Paper Structure:

  • Question 1: Electrical and resistance experiment involving measurement of wire diameters, resistance calculations, and capacitor discharge analysis.
  • Question 2: Mechanics and optics practical involving moments using a metre rule and determination of focal length of a concave mirror.

  It covered the following practical topics:

  • Measurement of wire diameters using a micrometer screw gauge
  • Comparison of resistances using a metre bridge setup
  • Determination of resistance ratios using measured lengths of wire
  • Verification of resistance relationships using measured values
  • Charging and discharging of a capacitor in an electrical circuit
  • Measurement of current and time during capacitor discharge
  • Graphical analysis of current against time
  • Principle of moments using a metre rule and suspended masses
  • Determination of apparent weight and upthrust when an object is immersed in water
  • Calculation of volume and weight of displaced water
  • Application of Archimedes’ principle in determining apparent loss in weight
  • Image formation using a concave mirror
  • Measurement of object distance and image distance
  • Determination of magnification of a concave mirror
  • Calculation of focal length using experimental measurements
  • Determination of average focal length from repeated measurements

  The practical paper assessed learners’ ability to take accurate measurements, record observations, perform calculations, draw graphs, and interpret experimental results according to the KCSE Physics practical syllabus. :contentReference[oaicite:0]{index=0}

• File Size:

  402.71 KB
• Length:

  9 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  PHYSICS
• Posted By:

  Caleb_Peter

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