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Definition
| is a device that makes distant objects appear to be closer. |
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Term
| electromagnetic radiation |
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Definition
| light is a form of elecromagnetic radiation, or energy that can travel through space in the form of waves. |
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Term
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Definition
| scientists call the light you can see visible light. |
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Term
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Definition
| the distance between the crest of one wave and the crest of the next wave is called wavelength. |
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Term
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Definition
| if you shine white light through a prism, the light spreds out to make a range of different colors with different wavelengths, called a spectrum. |
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Term
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Definition
| A telescope that uses lenses or mirrors to collect and focus visible lght is called an optical telescope. |
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