Electromagnetic spectrum (Edexcel GCSE Physics): Flashcards
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Practise the cards
15 cards from this deck
What type of wave are EM waves?
What type of wave are EM waves?
Transverse waves
What do EM waves transfer?
What do EM waves transfer?
Energy from source to absorber
Speed of EM waves in vacuum
Speed of EM waves in vacuum
All travel at same speed
Which part of EM spectrum can humans see?
Which part of EM spectrum can humans see?
Visible light
Higher frequency means...
Higher frequency means...
More energy transferred
Why are high frequency waves dangerous?
Why are high frequency waves dangerous?
Transfer more energy
Cause of EM wave refraction
Cause of EM wave refraction
Different speeds in different materials
What happens when EM wave is absorbed?
What happens when EM wave is absorbed?
Energy taken in by material
What happens when EM wave is transmitted?
What happens when EM wave is transmitted?
Wave passes through material
Longest wavelength EM wave
Longest wavelength EM wave
Radio waves
Lowest frequency EM wave
Lowest frequency EM wave
Radio waves
How is infrared radiation felt?
How is infrared radiation felt?
As heat
UV radiation effect on body
UV radiation effect on body
Can damage skin and eyes
Medical use of X-rays
Medical use of X-rays
Medical imaging
Highest frequency EM wave
Highest frequency EM wave
Gamma rays