Electromagnetic (EM) Waves (AQA GCSE Physics): Flashcards
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Practise the cards
15 cards from this deck
Type of EM wave
Type of EM wave
Transverse waves
What EM waves transfer
What EM waves transfer
Energy from source to absorber
Speed of EM waves in vacuum
Speed of EM waves in vacuum
m/s
Do EM waves need a medium?
Do EM waves need a medium?
No
EM spectrum visible to humans
EM spectrum visible to humans
Visible light
Longest wavelength visible colour
Longest wavelength visible colour
Red
Shortest wavelength visible colour
Shortest wavelength visible colour
Violet
EM spectrum order (↑ frequency)
EM spectrum order (↑ frequency)
Radio, Micro, IR, Vis, UV, X-ray, Gamma
Wavelength ↓, frequency ___?
Wavelength ↓, frequency ___?
Increases
Frequency ↑, energy ___?
Frequency ↑, energy ___?
Increases
Radio waves use
Radio waves use
Radio & TV transmission
How microwaves heat food
How microwaves heat food
Water molecules absorb energy
Microwave use in space
Microwave use in space
Satellite communication
Infrared camera use
Infrared camera use
Check buildings for heat losses
Visible light communication use
Visible light communication use
Fibre optics