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Erik's EM Voc
Question | Answer |
---|---|
used to sterilize medical equipment and for black light | ultraviolet |
1000 meters long used for tv and garage door openers | radio waves |
foot long used for heating food and police radars | micro waves |
size of a pin head,felt as heat,thermal cameras detect hidden warm bodies | infrared light |
used to see bones and hard tissue in the body | x-rays |
very dangerous,used to kill cancerous cells,can cause cancer cells,rare on earth | gamma rays |
what are the colors that you see with visible light? | red,orange,yellow,green,blue,indigo,violet |
allows some light through but not all of it (see light and movement only) | translucent |
the passing of an em wave through a medium | transmission |
air, water, windows | mediums |
materials that allow almost all light through (you can see what is on the other side) | transparent |
materials that don't let any light through (they reflect or absorb the light) | opaque |