Summary

• Description:

  The MS Word document comprises the Form 3 Physics Paper 3 (Practical) End Term 3 2025 Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  The practical exam paper is designed to be completed within a duration of 2 hours and 30 minutes and is marked out of a total of 40 marks. It consists of 2 compulsory questions, each worth 20 marks, testing experimental and data analysis skills.

  The examination covers the following practical areas:

  • Question 1: Hooke's Law (20 marks)
    • This experiment involves investigating the relationship between the force applied to a helical spring and its extension.
    • Skills tested include setting up the apparatus, taking accurate length measurements, recording data in a table, plotting a graph of Force versus Extension, and determining the spring constant from the slope of the graph.
  • Question 2: Current Electricity (20 marks)
    • This experiment is divided into two parts. The first part focuses on determining the resistance of a carbon resistor and understanding the difference between e.m.f. and terminal voltage. The second part involves finding the resistance per unit length of a nichrome wire.
    • Skills tested include constructing electrical circuits, using ammeters, voltmeters, and a micrometer screw gauge, applying Ohm's Law ($$V=IR$$), and calculating derived quantities like resistance per metre.
• Category:

  Exams
• Level:

  Form 3
• Subject:

  PHYSICS

Enter your details below to initiate a payment using MPESA.