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Science 8 Reflection and Refraction vocabulary

What is reflection? The process by which light strikes a surface and bounces off that surface.
What is the incident ray? The ray of light that comes from a light sources and strikes the surface.
What is the reflected ray? The ray of light that bounces off of the surface.
What is the normal (or normal line?) An imaginary line perpendicular to the reflecting surface.
What is the angle of incidence? The angle between the incident ray and the normal.
What is the angle of reflection? The angle between the reflected ray and the normal.
What does it mean if a surface is referred to as a plane? (like a plane mirror) It has a flat surface
What is the Law of Reflection? The angle of incidence equals the angle of reflection.
What is a convex surface? One that is curved or domed out.
What is a concave surface? One that is caved in.
What is refraction? The bending of light when it travels from one medium to another of different density.
What is the angle of refraction? The new direction of the light when it refracts.
Created by: blachapelle