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9 Cards in this Set

  • Front
  • Back
reflection
the bouncing of light off a surface
refraction
the change in direction of light when it goes from one medium into a different medium
ray
a representation of light as a straight arrow pointing in the direction the light travels
law of reflection
the angle of reflection equals the angle of incidence
angle of reflection
the angle a light ray leaving a surface or interface between two mediums makes with the line normal to the surface or interface, at the point the ray hits it
angle of incidence
the angle of a light ray approaching a surface or interface between two mediums makes with the line normal to the surface or interface, at the point the ray hits it
normal line
the line perpendicular to the surface or interface
composition of a medium and the speed of light
the speed of light in a medium depends on the composition of the medium
index of refraction
light' speed in empty space compared with light's speed in a medium