Waves
Must travel through a medium
Clear lens Infront of eye
Cornea
Collects sound In the ear
Pinna
Longest wavelengths and shortest frequency
Radio waves
A lens that curves outwards
Convex lens
vibrates perpendicular to direct of the wavw
transverse wave
Hole where light enters eye
Pupil
Bony ridge behind the auricle
Mastoid process
Measures the time it takes a radio wave to travel to satillites
A lens that curves inward
Concave lens
# of waves passing In 1 second
Frequency
Colored , circular muslce
Iris
Thin membrane that forms a boundary between outer and middle ear
Tympanic membra
Uses short radio waves with a magnet to produce an image
MRI
Concave lens causes light to ____
Diverge
Amount of time for one cycle to go around once
Period
Coverts light into electrical signals
Retina
Includes malleus , incus, and stapes
Ossicular chain
A radar uses ___ waves
Radio
Where waves meet after they have been reflected or refracted
Focal point
Bending of waves when it enters a new medium
Refraction
Problems seeing close or far away
Hyperopia
Connects middle ear to the back of your throat and equalizes air pressure
Eustachian tube
These waves kill off bacteria
Ultraviolet waves
This lens only produces images that are smaller , upright , or vertical
concave lens