Required Practical: Investigating Infrared Radiation (AQA GCSE Physics Combined Science): Flashcards
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Practise the cards
12 cards from this deck
What is the equipment used to emit IR from different surfaces?
What is the equipment used to emit IR from different surfaces?
Leslie cube
What device measures IR radiation emitted?
What device measures IR radiation emitted?
Infrared detector
What liquid is used to fill the Leslie cube?
What liquid is used to fill the Leslie cube?
Hot water
Name the four surface types on a Leslie cube
Name the four surface types on a Leslie cube
Shiny black, shiny silver, matt black, matt white
Why must the IR detector be the same distance from each surface?
Why must the IR detector be the same distance from each surface?
For a fair test
What is the heat source in the IR absorption experiment?
What is the heat source in the IR absorption experiment?
Infrared heater
What is the purpose of vaseline in the IR absorption experiment?
What is the purpose of vaseline in the IR absorption experiment?
To attach drawing pins to metal plates
What happens when vaseline melts in the experiment?
What happens when vaseline melts in the experiment?
Drawing pins fall off
Why does the metal plate temperature increase in the experiment?
Why does the metal plate temperature increase in the experiment?
Absorption of infrared radiation
Which surface absorbs the most IR radiation?
Which surface absorbs the most IR radiation?
Matt black
Which surface absorbs the least IR radiation?
Which surface absorbs the least IR radiation?
Shiny metallic
Which is the second best surface for absorbing IR radiation?
Which is the second best surface for absorbing IR radiation?
Shiny black