Electromagnetic Waves Questions and Correct Answers/ Latest Update / Already Graded

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Electromagnetic Waves Questions and
Correct Answers/ Latest Update /
Already Graded
Amplitude


Ans: the height of a wave from the origin to a crest, or from the origin to a

trough.




Cell Phones


Ans: use microwaves




Electromagnetic Waves


Ans: a form of energy that can travel through space




When EM waves strike a surface they can do one of three things.


Ans: reflected; refracted; absorbed




Frequency

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Ans: the number of complete wavelengths that pass a point in a given

time.




Gamma Rays


Ans: electromagnetic waves with the shortest wavelengths and highest

frequencies; dangerous




Infrared Radiation


Ans: next higher frequency and slightly shorter wavelengths often found

with heat lamps




Microwaves


Ans: type of radio wave; shorter




MRI


Ans: Radio Waves used to produce images inside of the body