Describing Wave Motion (AQA GCSE Physics): Flashcards

They can reflect, refract, or be absorbed

When a wave bounces off a material boundary

$angle of incidence = angle of reflection$

Angle between incoming wave and normal line

Angle between reflected wave and normal line

Line drawn perpendicular to the boundary

Waves bounce off smooth surface at same angle, clear reflection

Waves hit rough surface, reflect at diff. angles, matte look

Waves change direction crossing between materials

When wave meets boundary at an angle

Bends away from the normal

Bends toward the normal

Typically slower in denser materials

Travel faster (exception to usual rule)