Spec 1PH0
Revise Edexcel GCSE Physics 5.3.2 Radiation balance and constant temperature with the question bank and revision guides.
Explain that for a body to be at a constant temperature it needs to radiate the same average power that it absorbs. • Explain what happens to a body if the average power it radiates is less or more than the average power that it absorbs. Core Practical: Investigate how the nature of a surface affects the amount of thermal energy radiated or absorbed.