Required practical - Infrared radiation (AQA GCSE Physics Combined Science): Flashcards
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Practise the cards
13 cards from this deck
Aim of Leslie's cube practical
Aim of Leslie's cube practical
To investigate how surface type affects thermal radiation absorption and emission
What is Leslie's cube?
What is Leslie's cube?
Metal cube with four different coloured sides
Best surface for emitting thermal radiation
Best surface for emitting thermal radiation
Dull black surface
Worst surface for emitting thermal radiation
Worst surface for emitting thermal radiation
Shiny silver surface
Best surface for absorbing thermal radiation
Best surface for absorbing thermal radiation
Dull black surface
Worst surface for absorbing thermal radiation
Worst surface for absorbing thermal radiation
Shiny silver surface
Ranking of surfaces (best to worst emitter/absorber)
Ranking of surfaces (best to worst emitter/absorber)
Dull black, shiny black, white, silver
Surface properties affecting thermal radiation
Surface properties affecting thermal radiation
Colour and texture
What does Method 1 test?
What does Method 1 test?
How surfaces emit (give out) heat
What does Method 2 test?
What does Method 2 test?
How surfaces absorb (take in) heat
Link between absorption and emission ability
Link between absorption and emission ability
Good at one means good at the other (same pattern)
Distance of thermometer from cube in Method 1
Distance of thermometer from cube in Method 1
About 10cm
Typical surfaces on Leslie's cube
Typical surfaces on Leslie's cube
Dull black, shiny black, white, silver