Old model that light was fast moving tiny particles eventually absorbed by the eye
ParticleModelofLight
A model that represents light as a straight line or ray that indicates the light path as it travels including reflection off mirrors or refracting through lenses
RayModel of ilght
light passes through freely
Transparent
allows only some light to pass through
Translucent
allowing no light to pass through
Opaque
Occurs when light is blocked in specific areas
shadows
When light strikes a surface and bounces off
Reflection
the ray that approaches a surface
incident
imaginary line perpendicular to the surface being struck by light
Normal
angle between the incident ray and the normal line
Angle of incidence
Angle between the reflected ray and the normal line
Angle of reflection
incident angel must equal the reflected angle
Law of reflection
when a wave or ray changes speed and direction as it passes from one material to another
Refraction
illusion formed by refraction of light through air
Mirage
a property of a material which light passes through. The more dense the slower the light passes through.
Optically Dense
when light is trapped in an objects as heat
Absorption
when light passes through a material
Transmission
an object that curves inward
Concave
an object that curves outward
Convex
light rays that are coming together at a focal point
Converging
Light rays that spread apart
Diverging
Where light rays meet at a certain point
FocalPoint
A flat smooth mirror
Plane Mirror
curved piece of transparent material
Lens