Lesson covering thermal radiation that also recaps other methods of heat transfer. Also examines emitters, absorbers, insulation and vacuum flasks - contains student practice questions. Could also be used for a higher KS3 class
Developing: Recognise that thermal energy transfer by radiation does not require particles.
Securing: Describe the effect of surface colour (black or white) and texture (dull or shiny) on the emission, absorption and reflection of radiation.
Exceeding: Outline experiments to show the properties of good and bad emitters and absorbers.
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