Reflection (Edexcel GCSE Physics Combined Science): Flashcards
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14 cards from this deck
3 things waves do at boundaries
3 things waves do at boundaries
Reflected, absorbed, or transmitted
Definition of reflection
Definition of reflection
Wave hits surface & bounces back into original medium
Angle of 'normal' to boundary
Angle of 'normal' to boundary
90 degrees
Angle of incidence = ?
Angle of incidence = ?
Angle of reflection
When specular reflection occurs
When specular reflection occurs
Waves hit smooth surface
When diffuse reflection occurs
When diffuse reflection occurs
Waves hit distorted/uneven surface
Angles in specular reflection
Angles in specular reflection
Same angle of reflection as incidence
Angles in diffuse reflection
Angles in diffuse reflection
Different angles of reflection vs incidence
Effect of smoother surface on wave
Effect of smoother surface on wave
Stronger reflected wave
What rough surfaces do to light
What rough surfaces do to light
Scatter in all directions (appear matt)
Definition of transmission
Definition of transmission
Waves pass through transparent material & emerge
When absorption occurs
When absorption occurs
Light frequency matches electron energy levels
What happens to absorbed light
What happens to absorbed light
Reemitted over time as heat
Why green object appears green
Why green object appears green
Green light reflected, other frequencies absorbed