| A | B |
|---|
| electromagnetic waves | transverse waves consisting of magnetic and electric fields that change |
| electric field | region of space with negatively charged particles |
| magnetic field | region of space with magnetic or polar fields |
| How EM's travel | travel at right angles through matter or vacuum |
| electromagnetic waves differ because | they vary in wavelength and frequency |
| Speed of light | 3.0 X 10 8th |
| electromagnetic spectrum | the full range of frequencies of EM |
| radio waves | low frequency and long wavelength |
| gamma rays | short wavelength high frequency |
| ultraviolet waves | not detectable visually |
| transparent | material that lets most light through |
| translucent | material that scatters light |
| opaque | material that absorbs or reflects thet light |
| a red sunset is due to | scattering or diffusing of all colors except red in water droplets |
| primary colors of pigment | cyan yellow and magenta |
| secondary colors of pigment | blue green red |
| complementary colors of pigment | any two colors of pigment that combine to make black pigments |
| primary colors of light | red green blue |
| secondary colors of light | CYAN YELLOW AND MAGENTA |
| complementary colors of light | one primary color and one secondary color |
| michelson | discovered the speed of light in CA |
| main part of the eye | iris, pupil lens retina |
| cornea | transparent and curved surface of eye that helps to focus light |
| pupil | black dot in eye that allows light to enter |
| iris | colored part of eye contracts and expands |
| lens | convex sealed capsule containing a clear fluid |
| retina | inner surface of back of eye |
| rods and cones | light sensetive nerve endings electrical signals to brain |
| nearsightedness | distant objects are blurry |
| farsightedness | near object (reading) is blurry |
| astigmatism | mishappened cornea causes blurry vision |
