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# Quantum Theory - PowerPoint PPT Presentation

Quantum Theory. By: Lucas, Steven, Brandon and Kristen. Vocabulary. Spectra: the range of colors that a object will give off when it is heated or burned. Blackbody: An object that will absorb all light and can radiate it will almost no gaps in its spectrum.

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### Quantum Theory

By: Lucas, Steven, Brandon and Kristen

• Spectra: the range of colors that a object will give off when it is heated or burned.

• Blackbody: An object that will absorb all light and can radiate it will almost no gaps in its spectrum.

• Discrete: Apart from, or separate from others of its kind.

• Quantum: a discrete amount of energy, given by the product of Planck's constant(h) and the frequency of the radiation (f)

• Empirical equation: an equation that fits the observed data but is not based on any theory

• Postulate: a claim, something said without proof of consept.

• The color of light is determined by the its wavelength.

• Increasing or decreasing the temperature of an object will change the color of the light it emits.

• Each color of light can only have a a set number of different energy levels.

• When a blackbody is heated it follows a color path until it reaches a certain temperature limit.

• The pattern stops once you reach the ultraviolet end of the spectrum.

• A German physicist that is credited with creating the founding for quantum theory.

• He won the Nobel Prize in 1918 for his work in quantum mechanics.

• Now he is known for:

1. Planck’s postulate

2. Planck’s constant

3. Planck's law of black body radiation

• He used pervious theory about blackbody radiation and experiments done with the blackbody radiation spectrum to derive this constant.

• H= 6.626 068 96 x 10^(-34) j*s

• His postulate Allows use to find the energy of light at any frequency

• E=nhv

• n is a discrete value that depends on the color of light you are dealing with, h is Planck's constant and v is the frequency.