Core practical: Investigating refraction (Edexcel GCSE Physics Combined Science): Flashcards

Light changes direction when passing between media due to change in speed

Air: low optical density; Glass: higher optical density

Bends towards the normal

Bends away from the normal

Angle of refraction $<$ angle of incidence

Line perpendicular ($90°$) to the surface

Angle between incident ray and normal

Angle between refracted ray and normal inside block

Different optical densities affect light speed

All electromagnetic waves

Greater amount of refraction

Light slows down in glass (higher optical density)