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16 Cards in this Set
- Front
- Back
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What is an optical device? |
Any sort of device that helps us see things that we can't see with our naked eye. (also things that help us see better if our eyes are damaged) |
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What are some examples of optical devices? |
Telescopes, Binoculars, Microscopes, sattelites, x-rays, refracting telescope, refracting telescope and glasses to name a few |
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How many types of artificial lights are there? |
There are 4 different types of artificial light sources: -Incandescent -Phosphorous -Florescent -Chemiluminescence |
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What is the law of reflection? |
Light reflected on a surface will reflect back at the exact same angle it was shone. |
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What are the properties of light? |
-Light travels in straight lines -Light can be reflected -Light can bend -Light is a form of visible energy |
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what does opaque mean? |
something that light cannot pass though. ex: a mundane rock, wood, or animal |
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what does translucent mean? |
Something that only a limited amount of light can pass through. ex: most crystals, leaves, or sea glass |
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what does transparent mean? |
something that all light can pass though. Ex: some crystals or clear water |
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what is bioluminescence? |
When an organism creates it's own light through tiny things called Photophores |
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what is a concave lens shaped like? what does it do to the image you are looking at? |
)( it makes it appear smaller |
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what is a convex lens shaped like? what does it do to the image you are looking at? |
() it makes it appear larger |
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what is a ray diagram? |
this <--- |
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what is an angle of incidence? |
the angle of light that is from a source before it is reflected |
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what is an angle of reflection? |
the angle of light that is reflected off of a surface. |
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what is the difference between regular and diffuse reflection? |
Regular: a ray of light is shone onto a smooth surface and reflected off at a predictable angle. Diffuse: a ray of light is shone onto a rough/bumpy/wavy surface and reflected back at unpredictable angles, kind of. |
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What is 'Normal'? |
A line perpendicular to the mirror at the point of reflection |
