By: Kristi Trompower

 Light is a primary sensor to how the universe behaves. From learning about the biological patterns on Earth to discovering the astronomic rules of outer space, scientists rely upon detecting light waves.

 Materials that transmit light waves without distorting images. Objects can be clearly seen through:  Air  Glass  Some plastics Transparent. Technical Guides. Adobe, Web. 5 Jan

 Materials that transmit light but do not permit objects to be seen clearly  Lamp shades  Frosted light bulbs Translucent. Technical Guides. Adobe, Web. 5 Jan

 Materials that transmit no light but absorb or reflect all light incident upon them.  Brick Opaque. TutorVista Web. 5 Jan

Color

 Isaac Newton experimented on the colors when a narrow beam of sunlight passed through a prism.

 A spectrum is the ordered arrangement of wavelengths.  Rainbows (Violet to red)  Each color in the spectrum has a specific wavelength of light.

 Colors from which other colors can be made. 1.Red 2.Green 3.Blue  red & green = yellow  blue & green = cyan  red & blue = magenta

 Colors formed when two primary colors are mixed.  yellow (red & green)  cyan (blue & green)  magenta (red & blue)

 Two colors of light that when added together produce white light. 1.Yellow is made from 2 primary colors.  Red & Green = Yellow White =  Blue & Yellow  Red & Cyan  Green & Magenta

 A molecule that absorbs certain wavelengths of light and transmits or reflects others.  Tomatoes are red because it reflects light to our eyes.

 Colored materials that absorb certain colors and transmit or reflect others.  Like a dye  but a pigment particle is larger than a molecule  can be seen with a microscope.

 A pigment that absorbs only one primary color from white light. 1.Yellow (absorbs blue; reflects red and green) 2.Cyan 3.Magenta

 A pigment that absorbs two primary colors and reflects one. 1.Red (absorbs green & blue) 2.Green (absorbs red & blue) 3.Blue (absorbs red & green)  Primary Pigments are the Secondary Light Colors.

 Light interference caused by reflection from the front and back surface of a thin layer of liquid or solid.  Different colors have different wavelengths.  As thickness increases, light with shortest wavelength will be most strongly reflected. 1.Violet 2.Blue 3.Green 4.Yellow 5.Orange 6.Red **A rainbow of colors.**

 Light consisting of waves that vibrate on a specific plane.

 The ray model explains how lenses and mirrors form images.

 Zitzewitz, Paul W. Physics Principles and Problems. 2002ed. New York: Glencoe, Print.