EM Spectrum Vocabulary and Definitions
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The Electromagnetic Spectrum
By Oliver Smith
The electromagnetic spectrum, or EM spectrum, is all around us. The activities in this guide will help students master the different types of radiation in the EM spectrum.
Storyboard Description
EM Spectrum Vocabulary | Electromagnetic spectrum definition
Storyboard Text
- Frequency
- Wave Speed
- Wavelength
- Frequency is the number of waves to pass a point every second, measured in Hertz (Hz).
- Heinrich Rudolf Hertz
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- How fast a wave travels is called wave speed, measured in meters per second (m/s). All EM waves travel at the speed of light in a vacuum.
- Wavelength is the length of one wave, measured in meters (m).
- Ionizing
- EM Spectrum
- Amplitude
- A wave that can remove electrons from an atom, thus making them an ion, is said to be ionizing.
- Amplitude is the height of a wave, measured in meters (m). The higher the amplitude, the higher the intensity of the wave.
Image Attributions
- 43036 - Tekniska museet - (License Attribution )
- Frequency - quinet - (License Attribution )
- Warp speed - Robbie1 - (License Attribution )
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