Black Body Radiation (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What type of radiation do all objects above absolute zero temperature emit?
What type of radiation do all objects above absolute zero temperature emit?
Infrared radiation
What happens to the infrared radiation emitted as an object gets hotter?
What happens to the infrared radiation emitted as an object gets hotter?
It emits more infrared radiation
What does a perfect black body do with radiation that hits it?
What does a perfect black body do with radiation that hits it?
Absorbs all of it
A perfect black body is the best possible absorber and also the best possible what?
A perfect black body is the best possible absorber and also the best possible what?
Emitter
When does an object stay at a steady temperature?
When does an object stay at a steady temperature?
When it absorbs = emits radiation
When does an object's temperature increase?
When does an object's temperature increase?
When it absorbs > emits radiation
When does an object's temperature decrease?
When does an object's temperature decrease?
When it emits > absorbs radiation
What are the units for intensity of radiation?
What are the units for intensity of radiation?
What happens to the wavelength of maximum intensity as an object gets hotter?
What happens to the wavelength of maximum intensity as an object gets hotter?
It gets shorter
What colour do cooler stars appear?
What colour do cooler stars appear?
Red
What colour do hotter stars appear?
What colour do hotter stars appear?
Blue-white