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6.3 Black body radiation

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Question 20
H

A student writes, "A matt black surface is a good absorber, so it holds on to radiation and keeps an object hot." Which statement corrects the student?

[1]
A

A matt black surface is a poor emitter, so an object cools more slowly.

B

A matt black surface reflects radiation, so an object cools more quickly.

C

A matt black surface transmits radiation, so an object cools more slowly.

D

A matt black surface is also a good emitter, so an object cools more quickly.

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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