Unit 10 Part 1

Unit 10 is about light and colors. Today we learned so much about different types of light such as its velocity which is represented by c and is 300000000 m/s, that the light we can see is only a tiny fraction of the wide spectrum of different types of light, and many other things. the different types of electomagnetic waves are radio waves which range from 500kHz-1000MHz, microwaves which range from 10^9 - 10^11 Hz, Infrared that is 10^11 - 10^14, the visible spectrum which is the light we can see ranging only from 4x10^14 - 7x10^14 and the colors go in least to greatest frequency in the order of red, orange, yellow, green, blue, indigo, violet, ultraviolet which is 10^14 - 10^17, x-ray 10^17 - 10^19, and anything above 10^19th is considered gamma. One main idea we learned from today was that certain objects can be opaque to certain mediums (cannot penetrate) while others are transparent to the mediums (can penetrate) an example of this would be clouds. On a cloudy day, light and heat aren't passing through the clouds, while ultraviolet or UV waves are.