Transfer of Energy by EM Waves (AQA GCSE Physics Combined Science): Flashcards
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Type of wave that EM waves are
Type of wave that EM waves are
Transverse waves
What EM waves transfer
What EM waves transfer
Energy from source to absorber
How EM waves are transferred
How EM waves are transferred
By vibrations of electric and magnetic fields
Do EM waves need a medium to travel
Do EM waves need a medium to travel
No, they do not require a medium
Can EM waves travel through a vacuum
Can EM waves travel through a vacuum
Yes, e.g. through space
What do EM waves form together
What do EM waves form together
A continuous spectrum of EM radiation
Speed all EM waves travel at
Speed all EM waves travel at
Speed of light
Properties that differ between EM wave types
Properties that differ between EM wave types
Frequencies, wavelengths, and properties
Portion of EM spectrum humans can see
Portion of EM spectrum humans can see
Visible light
Size of visible light in EM spectrum
Size of visible light in EM spectrum
Very small portion
Example: Sun emits infrared, what absorbs on Earth
Example: Sun emits infrared, what absorbs on Earth
The air (absorber that heats up)