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light and stucture

6.P.1.2 Light and the Structure/Functions of the Eye- Waves

TermDefinition
Cornea clear lens in front of eye
Pupil the hole where light enters into the eye
Iris the muscle that controls the amount of light entering the eye
Sclera supports eyeball and provides attachment for muscles (white part)
Lens lens behind pupil; allows us to see objects near and far
Retina converts light waves to electrical signals
Optic Nerve transmits electrical signals from retina to the brain
Blind Spot small spot on back of retina; other eye compensates for this area
Visible Light light waves on the electromagnetic spectrum that can be seen by the human eye
Transverse Waves waves that move in an up and down motion (light)
Light type of energy emitted by the sun
Electromagnetic Wave waves that can travel in the vacuum of outer space (light)
Transmission occurs when light waves pass through an object without interacting
Absorption occurs when light waves transfer energy to particles of matter
Reflection occurs when light waves bounce off of an object
Scattering an interaction of light with matter that causes light to change direction (scatters in all directions)
Refraction occurs when light waves bend as they pass from one medium to another (objects appear larger/broken)
Created by: damienb
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