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Unit 8.6 EMS

Important Info about the Electromagnetic Spectrum

QuestionAnswer
What kind of waves are electromagnetic waves? Transverse
What two types of fields exist in an electromagnetic wave? Electric and Magnetic
What speed does an electromagnetic wave travel at? 300,000,000 m/s
What is the speed of light? 300,000,000 m/s
What is the lowest energy form of electromagnetic radiation? Radio Waves
What is the highest energy form of electromagnetic radiation? Gamma Waves
What is the relationship between the energy and frequency of an electromagnetic wave? As energy increases the frequency increases
What is the relationship between wavelength and frequency in an electromagnetic wave? They are inverses. As frequency increases the wavelength decreases
What type of waves are least dangerous? Radio Waves, they are low in energy
What type of waves are most dangerous? Gamma Waves, they are high in energy and have small wavelengths
What is the neumonic to remember the order of the EMS? Raging Martians Invaded Venus Using Xray Guns
What is the order of the EMS? Radio, Micro, Infrared, Visible, Ultraviolet, Xray, Gamma
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