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the smallest quantity of any type of electromagnetic radiation 


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the fashion of electric and magnetic fields that are continuously changing 


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what are the 4 properties used to describe photons 

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velocity, amplitude, frequency, and wavelength 


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the speed at which something is traveling, speed of light, 3x10 to the 8th m/s 


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1/2 the range from crest to valley or how tall the wave is in reference to it's baseline 


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the distance from any point on the sine wave to the next corresponding point (measured in meters) 


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the number of wavelengths passing a given point per second (measured in hertz (cycles per second) 


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what is the relationship between wavelength and frequency 

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inversely proportional, as one increases the other decreases 


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what is the electromagnetic wave equation 

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what is included in the electromagnetic spectrum 

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what is the range of electromagnetic radiation 

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10 to the 2nd Hz to 10 to the 24th Hz 


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what is the relationship between the energy of a photon and its frequency 

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directly proportional, as one increases, the other increases by the same amount 


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wavelength valued between 400nm to 700 nm (smallest segment of the spectrum) 


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not part of the electromagnetic spectrum 


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what is the difference between xrays and gamma rays? 

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thier origin: xrays come from the electron cloud and gamma rays come from inside the nucleus of a radioactive atom 


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what is the dual nature of electromagnetic radiation 

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it can behave as a wave(visible light) or a particle(xrays) 


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the reduction in intesity resulting from scattering and absorption 


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a property of structures or objects that attenuate xrays 


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a property of structures or objects that absorb xrays 


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radiation intensity is inversely related to the square of the distance from the source 


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the law of conservation of energy/matter 

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energy or matter can be neither created nor destroyed, but can be changed from one form to another 


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if you move the decimal to the left: 

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if you move the decimal to the right: 

Definition
you subtract from the exponent 


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what is the inverse square law formula 

Definition
I1(D1)squared=I2(D2)squared 


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