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19 Cards in this Set
- Front
- Back
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What is nearsighted?
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People who have trouble seeing far away.
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What is farsighted?
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People who have trouble seeing close objets.
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conave lens
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thin in middle, thicker edges, used for nearsighted people.
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convex lens
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thicker in middle,used for farsighted people.
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prism
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bends light rays
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light
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type of energy that travels as a wave but does not require a medium to travel.
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ultraviolet light
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causes sunburn
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refraction
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bending a light ray
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electromagnetic radiation
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type of energy sun gives off
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visible light
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part of the electromagnetic spectrum that we can see.
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relection
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light bouning off.
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______ energy wavelengths
are long |
low
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primary colors
what color is not primary? |
blue red yellow and green
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transluent
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lets some light through/scatters light
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transparent
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lets all light through
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opaque
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blocks light (shadow)
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red=
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longest wavelength
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convex
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makes things bigger
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concave
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makes things smaller
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