Investigating Radiation is a free interactive simulation of thermal radiation from different surfaces for GCSE Physics (Edexcel IGCSE 4PH1). Students vary the tube surface — black, white, silver or clear — and record temperature over time to investigate how surface colour and texture affect the rate of infrared radiation. This is a required practical for Edexcel IGCSE 4PH1. No login required — includes a worksheet and self-marking quiz.
Aim: The aim of the experiment is to investigate how the amount of infrared radiation absorbed or radiated by a surface depends on the nature of that surface.
| Time (min) | Black (°C) | White (°C) | Silver (°C) | Clear (°C) | Action |
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