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CAIE IGCSE Physics Conductor and Insulator Experiments

Practise comparing conductors and insulators through controlled rod, wax-pin or cooling experiments and infer conductivity from transfer rate or temperature change.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • heat equal rods identically and compare wax-pin fall order or temperature rise at equal distances
  • keep dimensions, heating conditions and thermometer positions constant between materials
  • identify the faster wax melting or larger temperature change as evidence of better conduction

2.3.1.1—Experiments to demonstrate the question 1

[Maximum number: 1]

Fig. 5.1 shows a cross-section of the inside of a vacuum flask containing a cold liquid. The walls of the vacuum flask are made of glass.

Fig. 5.1

Fig. 5.1

Suggest a suitable material for the stopper.

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