Waves
The highest part of a wave
crest
All forms of EM radiation travel at this speed
300,000,000 m/s
What is the process by which light strikes a surface and bounces off that surface
Reflection
The coloured part of the eye
iris
One full cycle of a wave
wavelength
type of EM radiation with the least amount of energy
radio
An object that reflects or absorbs all light (without letting it transmit)
opaque
opaque surface used for protection
sclera
what a wave transports
energy
Type of EM radiation used to treat cancer patients
gamma
type of lens that diverges light (hint: the opposite of the mirror that diverges light)
concave
two places light is refracted in the eye
cornea and lens
Controls the brightness of light
amplitude
what UV, x-ray and gamma can do to atoms
remove their electrons (ionize)
The type of mirror that always produces a smaller, upright image
convex
The place where the optic nerve attaches, no light can reach here
blind spot
A wave goes up and down 2 times in 4 seconds. What is the frequency of the wave
0.5 Hz
The order of the EM spectrum from lowest frequency to highest
radio, micro, infrared, visible, UV, x-ray, gamma
The purpose of the tapetum
to see in the dark