Ch. 4, Sect 1 Notes Light and Color Week 8

When Light Strikes an Object  When light strikes an object, the light can be ___ REFLECTED ___, ___ TRANSMITTED __, or __ ABSORBED __.  Most materials can be classified as ___ TRANSPARENT __, ___ TRANSLUCENT ___, or ____ OPAQUE ____.

Transparent Materials  A transparent material transmits ___ MOST __ of the light that strikes it.  The light passes __ RIGHT ___ through ___ WITHOUT __ being scattered  What are 2 examples of transparent: ____ CLEAR GLASS ___ and _____ AIR ___, ____ WATER _________

Translucent Materials  A Translucent material ___ SCATTERS __ light as it passes through.  You can see something through the material, however it is ____ BLURRED __.  What are 2 examples of translucent: ___ WAX PAPER ____ and ___ FROSTED GLASS ___

Opaque Materials  An opaque material __ REFLECTS ___ or ____ ABSORBS ____ all of the light that strikes it.  You __ CANNOT ___ see through opaque materials.  What are 2 examples of opaque: ___ WOOD _____ and ____ METAL ____ Pygmy Marmoset

The Color of Objects  The color of any object depends on the ____ MATERIAL ___ of the object is made of and the ___ COLOR __ of light striking the object.

Color of Opaque Object  Every opaque object ___ ABSORBS ___ some wavelengths of light and ___ REFLECTS ___ others.  The color of an opaque object is the color of the light it __ REFLECTED ____.  In red light a red apple looks __ RED ____.  In Green a red apple looks ___ BLACK _____.  In red light a green leaf looks____ BLACK ___.

Transparent and Translucent Objects  The color of a transparent or translucent object is the color of the light it ___ TRANSMITS __.  Transparent or translucent materials are used to make color __ FILTERS ____.  When you look at an object through a color filter, the color of the object may appear __ DIFFERENT __.  2 example of a color filter: __ SUNGLASSES ____ and ____ STAINED GLASS ___

Combining Colors  Colors that can combine to make any other color are called ___ PRIMARY ___ __ COLORS __.  2 primary colors combine in equal amounts to produce a _____ SECONDARY ______ ___ COLOR __.

Mixing Colors of Light  The primary colors of light are ___ RED ____, ___ GREEN ____, and ___ BLUE ____.  When all 3 colors of light are mixed equally it will produce ___ WHITE ___ light.  The secondary colors of light are ____ YELLOW ____, ____ MAGENTA ___, and ___ CYAN ___.  Any 2 colors that combine to form white light are called _____ COMPLEMENTARY ____ ___ COLORS ____.  1 example showing the mixing of color light is: ____ TELEVISION _____

Mixing Pigments  Colored substances that are used to color other materials are called ___ PIGMENTS ____.  As pigments are added together, ___ FEWER __ colors of light are __ REFLECTED __ and more are ___ ABSORBED __.  The 3 primary colors of pigments: _____ YELLOW ___, ___ MAGENTA ____, ___ CYAN ___  Combine all 3 primary colors of pigment and you will get ____ BLACK __.  The secondary colors of pigments are: __ RED ___, _____ BLUE ___, and __ GREEN _____