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6.3 Black body radiation

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Question 25
H

The concentration of greenhouse gases in the atmosphere increases. Which statement explains why the average surface temperature of the Earth then rises?

[1]
A

Less radiation emitted by the Earth escapes, so the Earth absorbs faster than it emits.

B

More radiation emitted by the Sun is absorbed by the gases, so less reaches the ground.

C

More radiation emitted by the Earth escapes, so the Earth emits faster than it absorbs.

D

Less radiation emitted by the Sun is reflected, so the Earth emits radiation more slowly.

Markscheme

6.3 Black body radiation Questions

  1. GCSE
  2. /Physics
  3. /6.3 Black body radiation

40 exam-style questions on AQA GCSE Physics 6.3 Black body radiation, covering 6.3.1 Emission and absorption of infrared radiation and 6.3.2 Perfect black bodies and radiation. Each one has a worked solution and a mark scheme showing where the marks go.

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