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Science Fair Questions

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Science Fair Question
How do different colors absorb and re-emit radiant (light) energy?

Background Research Have you ever experienced the warmth provided by a shaft of sunlight through a window? This paper is going to discuss how different colors absorb and re-emit radiant (light) energy. The following terms will be discussed; energy, radiant energy, photon, and electron volt.
Energy is defined as usable heat or power, measured by the amount of work done, usually in joules or watts. Energy can exist in a variety of forms, such as electrical, mechanical, chemical, thermal, or nuclear, and can be transformed to one form to another (The American Heritage Student Science Dictionary 116). Solar radiation can be converted into …show more content…

At absolute zero, a hypothetical temperature, all molecular movement stops-all actual temperatures are above absolute zero (Kelvin Temperature Scale). Lord Kelvin, who was a British inventor and scientist, developed this scale (Kelvin Temperature Scale). The temperature scale that has an absolute zero below and temperatures that do not exist is the Kelvin Temperature Scale. The Kelvin Temperature Scale corresponds with the Celsius temperature scale, absolute zero or 0̊ k which is the temperature with minimum molecular movement corresponds with -273.15 on the Celsius scale (Kelvin Temperature Scale-Fact Monster). The Kelvin and Celsius degrees are the same size, hence to the similar freezing and boiling of water. The Celsius freezing point of water is 0̊ C and the Kelvin is 273.15̊ k. The Celsius boiling point of water is 100̊ C and the Kelvin is 373.15̊ k (Kelvin Temperature Scale-Fact …show more content…

Photon’s are discrete bundles of energy and never stop moving, which is the opposite of absolute zero (Photon-What is a Photon?). The Stefan-Boltzmann Law is a statement that the total radiation heat energy emitted from a surface is proportional to the fourth power of its absolute temperature (Stefan-Boltzmann Law) and it is a very important aspect of this project. Temperature Kelvin is the only temperature scale designed to fit absolute zero, even though absolute zero my never be reached, though it has been approached (What is absolute

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