Reflection, Absorption & Transmission (AQA GCSE Physics): Flashcards
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11 cards from this deck
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Practise the cards
11 cards from this deck
Three wave interactions at material boundaries
Three wave interactions at material boundaries
Reflection, absorption, transmission
Relationship: angle of incidence & angle of reflection
Relationship: angle of incidence & angle of reflection
Angle of incidence = angle of reflection
Effect of smooth surfaces on reflected waves
Effect of smooth surfaces on reflected waves
Stronger reflected wave
What rough surfaces do to light
What rough surfaces do to light
Scatter light in all directions, appear matt
Definition of transmission in waves
Definition of transmission in waves
Waves passing through a transparent material
Effect of transparency on light transmission
Effect of transparency on light transmission
More transparent = more light passes through
Condition for light absorption by electrons
Condition for light absorption by electrons
Light frequency matches electron energy levels
What absorbed light is reemitted as
What absorbed light is reemitted as
Heat (over time)
Why green material appears green
Why green material appears green
Only green light reflected, other frequencies absorbed
What happens to non-green light in green material
What happens to non-green light in green material
Absorbed by electrons
How electrons create reflection in opaque materials
How electrons create reflection in opaque materials
Absorb light energy then reemit as reflected wave