Electromagnetic Waves (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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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
EM waves transfer energy from ___ to ___
EM waves transfer energy from ___ to ___
Source to absorber
Example of an EM wave source
Example of an EM wave source
The sun (emits infrared waves)
Example of an EM wave absorber
Example of an EM wave absorber
Earth's air (heated by infrared from sun)
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
What EM waves can travel through
What EM waves can travel through
A vacuum (such as space)
What EM waves form together
What EM waves form together
A continuous spectrum of electromagnetic radiation
What varies between different types of EM waves
What varies between different types of EM waves
Frequencies, wavelengths, and properties
Speed at which all EM waves travel
Speed at which all EM waves travel
The speed of light
What is visible light?
What is visible light?
The portion of EM spectrum humans can see