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During the night, the Earth's surface cools by emitting radiation. The diagram below shows two locations, A and B, at night.

Diagram showing a cross-section of the Earth's surface at night. Location A is on the left under clear skies, Location B is on the right under a thick cloud. Infrared radiation arrows are shown.

The average Albedo of the Earth's surface is about 0.30.30.3, while the Albedo of thick clouds ranges from 0.60.60.6 to 0.90.90.9.

Explain why the air and ground at Location A (clear sky) cool down much faster than at Location B (thick cloud cover).

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Black body radiation (physics only) Questions

Practise AQA GCSE Physics Black body radiation (physics only) with exam-style questions for Foundation and Higher tier. 9 questions covering Emission and absorption of infrared radiation and Perfect black bodies and radiation, matched to the AQA GCSE Physics (8463) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Black body radiation (physics only) Questions

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