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