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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 |