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15 Cards in this Set
- Front
- Back
What is light? |
Visible energy |
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Define a natural light source. |
Light that isn't made by humans |
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What are the five sources of light? |
Incandescent, Fluorescent, Phosphorescent, Chemiluminescent, And Bioluminescent |
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What is the first basic principal of light? |
Light is a form of energy that you can see |
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Define reflection. |
It's the process in which light hits a surface and bounces back. |
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What happens when light is reflected off a rough surface? |
It bounces off in random directions. |
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Name the 5 parts of a reflection diagram. |
incident ray, reflected ray, angle of incidence, angle of reflection, and the normal line |
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What are the 3 types of mirrors? |
concave, convex, and plane |
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What is refraction? |
When light bends. |
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What happens when light changes mediums? |
It refracts. |
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which way does light bend if it is going into a denser medium? |
Towards from the normal line. |
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Which way does light bend if it is going into a less dense medium? |
Away from the normal line. |
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Define a double concave lens. |
Thinner and flatter in the middle then around the edges. |
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Define a double convex lens. |
Thicker in the middle then around the edges. |
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How does your eye form an image |
The retina. If you have a long eye the image forms behind the eye making you near-sighted. And if you have a short eye the image has not formed when it hits your eye. |