What Can Light Pass Through?
How Can Light Rays Be Bent?
How Do Lenses Work?
How Does the Eye Work?
100
Light easily passes through these materials
What is transparent?
100
The bending of light rays as they pass from one substance to another is called this
What is refraction?
100
The surfaces of this lens curve outward, while the surfaces of this lense curve inward
What is convex (outward) and concave (inward)?
100
In this type of eye, the lens focuses images short of the retina, while in this type of eye, the image is focused behind the retina
What is nearsighted (short) and farsighted (behind)?
200
Light is completely blocked out by these materials
What is opaque?
200
The amount of refraction does this as the incoming angle gets shallower
What is increases?
200
The lens in a human eye is this type of lens
What is convex?
200
When light reaches the eye, it is refracted first as it passes through this
What is cornea?
300
In sunglasses, polarizing materials block this and other light that vibrates sideways
What is glare?
300
When light passes into a denser substance it does this
What is slows down?
300
A lens that forms images by refracting light rays apart is this type of lens
What is concave?
300
The opening that lets light enter the eye is this
What is pupil?
400
Allowing light vibrations to pass through in only one direction
What is polarization?
400
This is why a pencil in water appears to be bent
What is because light rays bend as they go from water into air?
400
A lense that forms images by refracting light rays together is this type of lens
What is convex?
400
Light then passes through this and is bent still more, forming an image on the retina
What is lens?
500
Matter that is this will allow some light to pass through
What is translucent?
500
If light strikes the new material head on, its direction is this
What is unchanged?
500
A curved piece of transparent material that refracts light to make an image is called this
What is lens?
500
The nerve that carries images to the brain is called this
What is optic nerve?
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