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21 Cards in this Set
- Front
- Back
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refraction |
the bending of a light ray as it goes from one substance into another. |
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reflection |
light bouncing of an object |
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light source |
makes its own light |
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concave |
curved like the inner surface of a sphere |
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convex |
curved or rounded outward like the outside of a sphere |
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lens |
a device that diverges or converge a beam of electomagnetic radiation |
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electromagnetic |
a wave of that gets shot from the source that has a electric and magnetic property light that we see is electro magnetic radiation |
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mirror |
a object that causes light or any other radiation to be reflected from its surface with little or no diffusion |
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prism |
a transparent polygonal solid that has triangular ends and rectangular sides for dispersing light into a spectrum or for reflecting and deviating light. |
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ray |
a narrow beam of light. |
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normal |
an imaginary line that is 90 degrees.it is in between the angle of incidence and angle of reflection |
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transparent |
light can go through it |
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translucent |
light can go through it but not clearly |
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opaque |
light cant go through |
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image
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an optically formed duplicate
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iris
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controls the amount of light entering the eye
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pupil
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the pupil is where the light enters the eye
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cornea
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the cornea is the clear outer cover which protects the eye
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lens
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the lens focuses the light so it falls on the retina at the back of the eye
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retina
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the retina is a screen at the back which focused light hits it has millions of light sensitive cells
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optic nerve
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the optic nerve is connected to all the cells in the retina. it takes informaton from the light sensitive cells and sends it to the brain
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