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Properties of Light Concave/ Reflection/Using Mirrors Convex Refraction And Lenses Colors 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500 Light waves travel the fastest through which medium? A vacuum What determines the color of light? It’s wavelength What is an object that reflects some light and transmits some light called? translucent What type of material reflects the most amount of light? opaque What type of material lets nearly all light through? Transparent Which way does a concave mirror curve? Convex? Concave: Inward Convex: Outward What kind of reflection type (converge/diverge) does a concave and convex mirror have? Concave: Converge Convex: Diverge Where is a concave and convex lens thickest? Concave: Thicker Edges Convex: Thicker middle Is the image smaller or larger for: 1) A concave mirror with the object between the focal point and mirror? 2) A concave mirror with the object beyond the focal point? 1) Between focal point: Larger 2) Beyond Focal point: Smaller Is the image upright or inverted for: 1) A concave mirror with the object between the focal point and mirror? 2) A concave mirror with the object beyond the focal point? 1) Between focal point: Upright 2) Beyond Focal point: Inverted What is the difference between a mirror and a lens? Mirror: Reflects light Lens: Refracts light What is the difference between reflection and refraction? Reflection: light wave bounces off a surface Refraction: light wave bends as it passes from one medium to another due to the change in wave speed What is the difference between regular and diffuse reflection? Regular Reflection: occurs with smooth surfaces and results in a clear image because the light rays reflect normally Diffuse Reflection: occurs with rough surfaces and results in no clear image because light rays reflect in different direction What type of reflection occurs when light rays are caused to scatter? Diffuse Reflection What is the law of reflection? Law of Reflection: the angle of incidence is equal to the angle of reflection What is the straight line drawn perpendicular to the center of a mirror called? Optical Axis What is thin, flexible, and transparent that can make light travel in curved paths using total internal reflection called? Optical Fibers When you look through a tinted, transparent filter, what color will you see? The color that is transmitted What is true about an object that appears red? 1. It reflects red light 2. It absorbs all colors except red 3. It may be made of yellow and magenta pigment What is used to see detailed images of distant object using a concave mirror, plane mirror, and eyepiece? Reflecting Telescope What are the 3 primary colors? Red, Green, Blue What are the 3 primary pigment colors? Magenta, Yellow, Cyan If an object absorbs all the light that hits it, what color does it appear? Black What color do the primary light colors make when they overlap? White The color that an object appears is the color of light it _________. The object _________ all of the other colors. The color that an object appears is the color of light it reflects. The object absorbs all of the other colors.