Describing Wave Motion (OCR GCSE Physics A, Combined (Gateway Science Suite)): Flashcards
📚Flashcards
Practise the cards
15 cards from this deck
ShowHide
Practise the cards
15 cards from this deck
3 outcomes when waves meet boundary between materials
3 outcomes when waves meet boundary between materials
Refract (bend), reflect, or be absorbed
Definition of reflection
Definition of reflection
Wave bounces off a material boundary
Law of reflection (angle relationship)
Law of reflection (angle relationship)
Angle of incidence
Angle of incidence
Angle between incoming wave and normal line
Angle of reflection
Angle of reflection
Angle between reflected wave and normal line
Normal line
Normal line
Line perpendicular (at right angles) to boundary
Type of surface for specular reflection
Type of surface for specular reflection
Smooth surface
Appearance of specular reflection
Appearance of specular reflection
Clear, shiny reflection (like mirror)
Type of surface for diffuse reflection
Type of surface for diffuse reflection
Rough surface
Appearance of diffuse reflection
Appearance of diffuse reflection
Matte appearance, no clear reflection
Definition of refraction
Definition of refraction
Waves change direction crossing between materials
Condition for refraction to occur
Condition for refraction to occur
Wave must meet boundary at an angle
Wave direction when speed increases in new material
Wave direction when speed increases in new material
Bends away from normal
Wave direction when speed decreases in new material
Wave direction when speed decreases in new material
Bends toward normal
Wave speed in denser materials (typical)
Wave speed in denser materials (typical)
Slower (except sound waves are faster)