Electromagnetic waves Flashcards
How many are there?
7
Name them in order
Least to most
Radio Microwave Infrared Visible Ultraviolet X-ray Gamma
Most deadly?
Gamma
Least deadly
Radio
In the middle?
Visible light🌄
Use of gamma rays
Kill bacteria in food
Steralise medical equipment
Treat cancer
X-ray uses
Takes pictures of your bones
Ultraviolet uses
Tanning
Secutrity marking
Visible light uses
Helps us see
Photography
Infrared uses
Radiant heaters Grills Remote controls Thermal imaging Night vision goggles
Microwave uses
Satellite communication
Cooking
Radio wave uses
Communication
Broadcasting
Radar
Why does microwaves help satelite communication?
Its the only wave that can go through the earths atmosphere, reach a sateliite, then sent back to earth🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄🥄
Gamma ray risks
Kills living cells in high doese
Causes cancer
X-ray risks
Causes cancer
Ultra-violet risks
Sunburn
Skin cancer
Visible light risks
Damages cells in your retina in the eye👁👁
Infrared risks
Can burn your tissues
Aka it can burn you
Microwave risks
Can burn/boil tissues
Radio wave risks
Probably none
Colour of longest wave-length
Red♦️♦️♦️♦️♦️♦️
Most penetrating wave?
Gamma
Which electromagnetic wave has a lenght of cm?
Microwave
Why are long radio waves used for international radio?
Because they reflect of the atmosphere and are long
