Aren't they arranged in order of decreasing wavelength and increasing energy and frequency
Yes! That is correct.
As you are aware, the EM spectrum is divided into seven regions.
As you can see from the board, radio waves have the longest wavelength. They can range from the length of a football to larger than our planet.
WHAT?!? LARGER THAN OUR PLANET?
Isn't that going to have an impact on our bodies?
Yes, believe it or not.
Nope, not at all. Radio waves are a type of non-ionizing radiation that hasn't been proven to harm humans.
I repeat. They do not harm humans or other living organisms if they are absorbed, unlike other EM waves that emit ionizing radiation.
NOOOOOOOO!!!
Anyway, this is now the end of the lesson. I hope today's class taught you something new and interesting. Now get your pen and paper ready for a surprise quiz.
They also have no negative environmental effects because they can pass through the atmosphere and most building materials.
THE END
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