Electromagnetic Waves (AQA GCSE Physics Combined Science): Flashcards
📚Flashcards
Practise the cards
15 cards from this deck
ShowHide
Practise the cards
15 cards from this deck
What type of wave are EM waves?
What type of wave are EM waves?
Transverse
Speed of EM waves in space (m/s)
Speed of EM waves in space (m/s)
m/s
Can EM waves travel through a vacuum?
Can EM waves travel through a vacuum?
Yes, unlike sound waves they don't need a medium
Number of main types in EM spectrum
Number of main types in EM spectrum
Seven
EM spectrum order (longest to shortest wavelength)
EM spectrum order (longest to shortest wavelength)
Radio, micro, infrared, visible, UV, X-ray, gamma
EM wave with longest wavelength
EM wave with longest wavelength
Radio waves
EM wave with shortest wavelength
EM wave with shortest wavelength
Gamma rays
Relationship: frequency increases, wavelength...
Relationship: frequency increases, wavelength...
Decreases (inverse relationship)
Formula for frequency of EM waves
Formula for frequency of EM waves
Visible light wavelength range (m)
Visible light wavelength range (m)
to m
Visible colour with longest wavelength
Visible colour with longest wavelength
Red
Visible colour with shortest wavelength
Visible colour with shortest wavelength
Violet
Two uses of microwaves
Two uses of microwaves
Cooking food, satellite communications
Two uses of infrared
Two uses of infrared
Remote controls, thermal imaging
Two uses of X-rays
Two uses of X-rays
Medical imaging, airport security