Waves, Quantum Theory, and Photons!

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Last updated 12:21 PM on 10/27/21
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11 Terms

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Wave
A vibrating disturbance through which energy is transmitted.
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Wavelength
The length of the wave from peak to peak or trough to trough.
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Amplitude
The vertical distance from the middle of the wave to the peak or trough.
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Peak/Crest
Top of the wave.
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Frequency
The number of waves that pass through one specific point.
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Trough
The bottom of the wave.
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EM Spectrum
The collection of all types of EM radiation.
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Visible Spectrum
Rainbow-colored portion is made up of the colors that humans can see.
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Planck's Theory
A quantum is the smallest quantity of energy that can be emitted or absorbed in the form of EM energy.
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Photons
1. They are neutral and stable and have no mass.
2. They interact with electrons and have energy and speed that are dependent on their frequency.
3. They can travel at the speed of light, but only in a vacuum, such as space.
4. All light and EM energy are made of photons.
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Quantum Theory
Allows scientists to understand how electrons behave and to make predictions.