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Success Criteria:
I understand that visible light is a small region on the electromagnetic spectrum
I am able to compare the wavelengths and frequencies of other regions on the electromagnetic spectrum such as; radio, microwave, infrared, ultraviolet, X-ray and gamma.
I understand that electromagnetic radiation can be used for a number of purposes depending on the frequency of the wave
I can use the wave equation to calculate the frequency and wavelength of electromagnetic waves
Fun Fact:
The James Webb Space Telescope (JWST) uses mainly infrared light to observe the universe. Infrared has longer wavelength that visible light, making it more suitable for studying celestial objects.
Key terms
Electromagnetic Spectrum all bands of electromagnetic radiation; radio, microwave, infrared, visible, ultraviolet, X-ray and gamma.
Band a division of the magnetic spectrum that depends on its properties of wavelength and frequency
Speed of light (c) all electromagnetic radiation (EMR) travels at a speed of 3 x 10^8 m/s in a vacuum
Direction of propagation the axis (direction) along which a wave travels
Learning Tasks
Chapter 2.3 key knowledge questions p.78 of textbook
Research - pick a band in the Electromagnetic Spectrum (i.e. infrared, radio etc.), find 3 uses/examples for this type of radiation in society. Explain what properties make this particular radiation useful for this purpose. Share this in class.
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