The Electromagnetic Spectrum 3A 2017-18 by Winnie Man https://padlet.com/winnieman913/1dbbkf6454dc Learning Target: I am able to describe the properties and some uses of electromagnetic waves. en-us 2017-11-12 17:05:09 UTC 2023-02-12 13:12:37 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Thunder.png Radio waves (3A Miss Man) winnieman913 https://padlet.com/winnieman913/1dbbkf6454dc/wish/206003284 Sources: stars; radio transmitting aerial 
Properties (wavelength, frequency): 
Detector: radio antenna
Potential danger: 

Applications: Octopus cards 
Principle:
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