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Black Body Radiation

Revise Black Body Radiation in Energy for GCSE Physics with 13 exam-style questions and 5 flashcards. This is a high-frequency exam topic, so students should expect to explain it clearly under timed conditions.

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Why Hot Metal Glows

Introduction 2

⬛ What is a Black Body?

Key Facts 3

Black Body Spectrum

Diagram 4

Earth's Temperature Balance

Key Facts 5

Exam Focus

Exam Focus 6

Exam Tips for Black Body Radiation

Exam Tips 7

Knowledge Organiser: Black Body Radiation

Summary

Sample Flashcards

Define:

A black body is a theoretical perfect absorber and perfect emitter of radiation.

Perfect emitter

Emits the maximum amount of radiation at every wavelength

Exam questions for Black Body Radiation

What is a perfect black body?

A. An object that reflects all radiation that hits it
B. An object that only emits visible light
C. An object that absorbs all radiation that hits it and reflects none
D. An object that is black in colour and absorbs only visible light

1 markfoundation

Explain how the radiation emitted by an object changes as its temperature increases.

3 marksstandard

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