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Light and Temperature

Goals. What is light?What are the types of light?Where does the light we see come from?Understanding the light of heat.On a sunny day:Why does it seem hotter wearing a black T-shirt versus a white one?Why are they different?. What is Light?. Light is a wave of energy.Moves through a vacuum.T

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Light and Temperature

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    1. Light and Temperature Astronomy: The Science of Seeing

    2. Goals What is light? What are the types of light? Where does the light we see come from? Understanding the light of heat. On a sunny day: Why does it seem hotter wearing a black T-shirt versus a white one? Why are they different?

    3. What is Light? Light is a wave of energy. Moves through a vacuum. Travels at the speed of light (a CONSTANT): c = 3 x 1010 cm/s The wavelength (l) and frequency (n) are related: c = ln The energy of light is: E = hn = hc/l

    4. The “Visible” Spectrum When you think of “light”, what do you think of?

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