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Color and Light Test

Study Guide for Science Light Test

What is most important source of natural light? sun
What kind of material is a good reflector of light? smooth, light colored, shiny
Why can we see things that do not send out light waves? the light is reflecting off of it
When sunlight strikes snow, some of the sunlight is absorbed. What happens to the light energy that is absorbed? it changes to heat energy
In the summer, why is the blacktop driveway hotter than the grass? light rays absorbed by the blacktop are changed to heat energy
How does light pass through a translucent object? bend in all different directions (refract)
How does light travel through the a flat transparent material? in a straight line
What is Refraction? bending of waves as they travel at an angle from one medium to another
What happens to an image when light rays pass through a convex lens? it is upside down
Which reflects more light? A yellow piece of paper or a black piece of paper? yellow
True or False: White light contains all the color in the visible spectrum True
What are the colors of the spectrum in order? Red, Orange, Yellow, Green, Blue, Indigo, Violet
Why can't you see your reflection in a wooden door? The light is not reflected directly back at you. The light waves scatter and bend at different angles.
What are two sources of light? natural and artificial
What is it called when light bounces back from a surface? reflection
How much light does a transparent object let pass through? most
What is an example of a transparent object? window
How much light does a translucent object let pass through? some
What is an example of a translucent object? wax paper
How much light does a opaque object let pass though? none
What is an example of a opaque object? wood
What colors of light does a black shirt absorb? All
What colors of light does a white shirt absorb? None
Why does a pencil appear fatter and broken when put into a glass of water? The water is refracting light rays from the pencil.
What color do you get when red and blue light are mixed together? majenta
What color do you get when red and green light are mixed together? yellow
What color do you get when blue and green light are mixed together? cyan
What, in your eye, adjusts to focus an image? lens
What, in your eye, does the lens focus the image on? retina
What type of lens does your eye contain? convex
Where is the retina located in your eye? the back
What is the part of your eye that is colored and regulates the size of the pupil by contracting and expanding around it? iris
What connects your brain to your retina? optic nerve
What is the round opening in your eye that controls the amount of light that goes onto the retina? the pupil
What is the white part of your eye called? the sclera
Created by: Adamsthornell