Light Enters | Forming Images | Diagnose the Patient | True or False? | Review |
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Eye and Brain
You see objects with these two body parts.
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Lens
Where does the light go after it enters the pupil?
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Nearsighted
Can see nearby things
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False
You can see in total darkness if your pupils get large enough.
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Black
What color will a blue sweatshirt appear in red light?
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Cornea
Light enters the eye through this transparent surface.
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Optic Nerve
Rods & cones send signals to the brain along this short, thick nerve
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Nearsighted
Things far away are blurry
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True
Most people have brown eyes
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It bends / is refracted.
What happens to light when it travels from air into water?
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To let less light in.
Why does the pupil get smaller when we look at bright light?
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Retina
Layer of cells that lines the eyeball
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nearsighted
A parent has trouble seeing the scoreboard from the bleachers.
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True
The upside down image on your retina is turned right side up by the time it reaches your brain.
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Translucent
What kind of material scatters light as it passes making an image blurry? (Transparent, translucent or opaque)
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Iris
Which part of the eye is a colored muscle that changes the size of the pupil?
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Rods & cones
_____ & ______allow you to see colors.
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Farsighted
The focal point is behind the retina
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False
Color blindness is caused by the light being reflected differently through the cornea.
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White
What color is produced by mixing equal amounts of the primary colors of light?
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The pupil gets larger
What happens to your pupil if you cover your eye for 30 seconds?
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Light enters the eye
Through the lens Upside down image on retina Image travels on optic nerve to brain
How do you see objects?
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Farsighted
Jimmy can see the writing prompt on the chalkboard but has trouble writing on the line in his journal.
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True
The ciliary muscles hold the lens in place and help focus.
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Red, Orange, Yellow, Blue, Violet (purple)
You are at the beach holding a green Frisbee. What color(s) is/are absorbed?
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