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How many types of electromagnetic waves are there?
7
9
6
All EM waves can be refracted, reflected and difracted
What can happen to materials that absorb EM radiation?
It explodes
It heats up
It melts
It disintegrates
What is the wave equation?
velocity= frequency X wavelength
frequency --------------- speed X distance
time X mass X velocity
Which Greek letter represents 'wavelength'?
lamda
theta
delta
Gamma rays destroy all living things in its path
What are Gamma rays released by?
Rocks
Living Things
Radioactive Material
Fibre Optic Broadband uses radio waves
What are the risks of UV light?
Cancer
Sunburn
Tanning
Radiotherapy uses microwaves to destroy cancerous cells
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