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Posted by BitesizePhysicsTeacher (U15165682) on Tuesday, 5th February 2013
In both SG and Int 2 you are expected to know the order, uses and detectors for the different types of waves in the Electromagnetic spectrum.
There's some great revision material on the Bitesize sites here -
SG - www.bbc.co.uk/bitesi...
Int2 - www.bbc.co.uk/bitesi...
Something that comes up a lot in both courses is the order of the different types of wave in terms of increasing frequency or wavelength. (They all have the same speed - 3 x 10⁸ m/s)
In order of increasing frequency (and decreasing wavelength) from top to bottom -
Radio & TV
A mnemonic might help you to remember the order, for example -
"Rusty Metal Inside Vans Uses Xtra Grease'
That one is rubbish, obviously, but you'll remember something you come up with better anyway.
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