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MIRREN physics GCSE English 3 cards

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1The 'low notes' have a low frequency and a long wavelength.The 'high notes' have a high frequency and a short wavelength.
2when i say "wave", you might think of a wave on the sea. it's obvious what's going on - the surface of the sea is vibrating up and down.With a sound wave, it's the air particles that are vibrating
3So they don't need air in order to travel. They don't need anything to be there at all.UHF stands for "Ultra High Frequency", and has wavelengths of less than a metre. It's used for Police radio communications, television transmissions and military aircraft radios - although military communications are now mostly digital.

Description: GCSE physics Flashcards on Untitled, created by MIRREN on 13/05/2014.
Created by: MIRREN · May 2014
Updated: Feb 19, 2016
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