Studied by 82 people
Electromagnetic waves
a wave that is partly magnetic and partly electric
Radio
Largest electromagnetic waves (size of buildings-humans)
Microwave
Second largest electromagnetic waves (size of honey bee)
Infrared
Third largest electromagnetic wave (size of a pinpoint)
Visible light
Middle of the electromagnetic spectrum (roygbiv)
Ultraviolet
Third smallest electromagnetic wave (size of molecules)
X-ray
Second smallest electromagnetic wave (size of atoms)
Gamma ray
Smallest electromagnetic wave (size of atomic nuclei)
Radiation
emitting electromagnetic waves
low
Radio waves have high or low frequency?
high
Gamma ray waves have high or low frequency
3 x 10^8 m/s
What is the speed of light?
700 nm - 400 nm
Range of visible light? (nanometers)
white
our eyes interpretation of every color wave at once
black
no light waves, everything is absorbed
red, green, blue
three primary colors
yellow, cyan, magenta
three secondary colors
Cornea
part of eye that lets light through, protective layer
lens
part of eye that focuses the image
retina
part of the eye that the image is focused on, contains rods and cones
optic nerve
bundle of nerves that connects to the brain
rods
cells on outside of retina that see bright and dark
cones
cells on the center of the retina that react to colors, three types (red green, blue)
color-blindness
missing or damaged cones leads to...
yellow
Red-high, Green-high, B- none
cyan
Red-low, Green-mid, Blue-mid
Reflection
light hits a surfaces and bounces off, the incident ray and second ray have the same angle
Refraction
the medium changes so the direction of the wave changes, light "curves"
Diffraction
bending of waves around small obstacles and the spreading out of waves past small openings
Polarization
reflection of light of non-metallic surfaces, results in removal of light waves that aren't a certain direction
Blind spot
The optic nerve in your retina causes a...
medium
the substance waves are traveling through
Spectrum
range of things
Velocity = frequency x wavelength
Speed of a wave formula
because blue waves are small but our eye picks them up more than violet waves.
Why is sky blue and not violet?
color combinations
Note 
Flashcard (53)