EM Waves & Matter (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
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Transmission of EM waves
Transmission of EM waves
Waves pass through the new medium
Absorption of EM waves
Absorption of EM waves
Waves absorbed, energy converted to heat
Reflection of EM waves
Reflection of EM waves
Waves bounce back from surface
Refraction of EM waves
Refraction of EM waves
Waves change direction due to speed change
How does wavelength affect EM wave interactions?
How does wavelength affect EM wave interactions?
Different parts of EM spectrum interact differently
Glass interaction with visible light
Glass interaction with visible light
Transmits and refracts visible light
Glass interaction with UV radiation
Glass interaction with UV radiation
Absorbs UV radiation
Glass interaction with IR radiation
Glass interaction with IR radiation
Reflects infrared (IR) radiation
Why refraction occurs
Why refraction occurs
Speed of EM waves changes between media
Speed of EM waves in a vacuum
Speed of EM waves in a vacuum
All EM waves travel at same speed in vacuum
EM wave speed in materials (glass, water, oil)
EM wave speed in materials (glass, water, oil)
EM waves slow down in materials
Why wavefronts bend during refraction
Why wavefronts bend during refraction
Parts enter at different times, move at different speeds
Visible light entering/exiting glass block
Visible light entering/exiting glass block
Bends due to change in speed