Term
| Name the 2 ways that light behaves. |
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Definition
electromagnetic waves tiny bundles of energy - photons
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Term
What kind of waves are sound waves? |
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Definition
longitudinal waves
(They need a medium to travel through.)
(They cannot be heard in a vacuum.) |
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Term
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Definition
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Term
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Definition
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Term
| How are light waves different from sound waves? |
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Definition
Light travels in transverse waves and sound travels in longitudinal waves. Light does not need a medium to travel through and sound does. Light can travel through a vaccum.
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Term
| What are the 4 properties of light? |
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Definition
speed wavelength frequency amplitude
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Term
| What is the speed of light? |
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Definition
186,000 miles/second (or 300,000 km/sec) |
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Term
What does wavelength mean? |
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Definition
| It is the distance from the crest OR trough of one wave to the crest OR trough of the next wave. |
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Term
| What does frequency mean? |
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Definition
| It is the number of light waves that pass by a point each second. |
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Term
| What does amplitude mean? |
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Definition
| It is the height of a wave. |
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