Physics

Optic nerve

________: Carrys the messages to the brain.

Cornea

________: outside part that protect the outside of the eye.

Microwaves

________ contain lows energy but are useful when it comes to cooking and contain long wave lengths.

Refraction

________ is the bending of light as it passes through one substance that is transparent to another one.

Shadows

________ are created when an Opaque object block out light rays and create a dark area where light rays don't reach.

Xray

________ have high energy and can see through skin and reveals images of bones.

Ultra violet

________ have high energy are harmful to humans cause sun burns and is used to sterile to equipment.

Lens

________: focuses the light entering the eye.

Iris

________: it contains muscles and changes the size of the pupil.

Radio waves

________ are normally super low but are also useful with things like TV, wifi and radio.

Violet

________ has the highest energy.

Retina

________: receives light that the lens has focuses and converts the light into neutral signs.

Concave mirror

________ reflects inwards towards a point called the focal point and as the rays get closer and meet they are called converging rays.

Light rays

________ travel for straight lines.

Convex mirrors

________ reflect light outwards and the focal point of a(n) ________ is behind the mirror, as the rays separate we call them diverging rays.

Gamma rays

________ have higher energy than x- rays.

lower energy

Infrared have and use longer wave lengths from (700mm to 1mm) And posses lower frequencies and ________ than visable light.

Pupil

the pupil is where light enters

Iris

it contains muscles and changes the size of the pupil

Lens

focuses the light entering the eye

Retina

receives light that the lens has focuses and converts the light into neutral signs

Cornea

outside part that protect the outside of the eye

Optic nerve

Carrys the messages to the brain

Transparent

let's most light through

Translucent

only let's some through

Opaque

no light can pass through

Ultra violet

UVC,UVB,UVAC are high energy