| A | B |
|---|
| travel in a vacuum or medium | electromagnetic wave |
| bouncing waves | reflection |
| no light passes through materials | opaque |
| nearly all light passes through materials | transparent |
| glass is an example | transparent |
| some light passes through materials | translucent |
| wax paper & frosted glass are examples | translucent |
| crest to crest /trough to trough | wavelength |
| wavelengths through a given point in 1 sec | frequency |
| wavelength and frequency | inversely proportional |
| high frequency/short wavelength on EM spectrum | gamma rays |
| long wavelength/low frequency on EM spectrum | AM radio |
| low frequency/long wavelength in visible light | red light |
| short wavelength/high frequency in visible light | violet light |
| narrow range of EM spectrum | visible light |
| color that you see | color that is reflected back |
| primary colors of light | red, blue, green |
| red/green reflected | yellow |
| red/blue reflected | magenta |
| blue/green reflected | cyan |
| only allows certain color it is to pass through | filter |
| presence of all colors of light | white light |
| absence of all colors of light | black |
| primary pigment colors | magenta, cyan, yellow |
| magenta/cyan mixed | blue |
| magenta/yellow mixed | red |
| yellow/cyan mixed | green |
| presence of all primary pigment colors | black |
| absence of all primary pigment colors | white |
| angle of incidence =angle of reflection | law of reflection |
| smoothness of surface | mirrorlike reflection |
| plane mirror | flat mirror |
| bounces light in/converge | concave mirror |
| bounces light out/divergent | convex mirror |
| where reflected rays intersect | focal point |
| distance from mirror to focal point | focal length |
| upside down ,backwards, smaller beyond focal pt | convex lens image |
| smaller upright image | concave lens image |
| bending waves/change of speed from1 medium to another | refraction |
| 300,000,000 m/s | speed of light wave |
| 340 m/s | speed of sound wave |
| lens thicker in middle | convex |
| lens thinner in middle | concave |
| image produced is inverted, reversed, smaller beyond focal pt | convex lens image |
| bent waves are smaller and upright | concave lens image |
| magniying lens | convex lens |
| reducing lens | concave lens |
