We are finally on our last unit! Electromagnetic waves! We leaned new vocabulary too, Transparent and opaque. Electromagnetic waves are transverse and need no medium to transfer through. For example, sunscreen is opaque to UV rays because it blocks them out. UV stands for ultra violet. There are three types of UV rays; UV A UV B & UV C. They are differentiated by their different frequencies. You get sunburn through UV A & B. Thick layers of concrete are opaque to cellphone signal. On the other hand, clear glass is translucent to most light. Opaque means you can't see through it and translucent means you can (mostly).
We also leaned about ROY G BIV. This stands for red, orange, yellow, green, blue, indigo, and violet, (like the rainbow in my picture) from low to high frequency. All the colors combined makes white.
New equations! E=hƒ
E= Energy
h= Plank's constant
ƒ= Frequency
c= Speed of light
c= 3 x 10^8 m/s
Look forward to scientific notation in our song! (:
A rainbow! It's very beautiful! Cx
ReplyDeleteI think it's really cool how you chose to show a rainbow because a rainbow is a reflection of light from the Sun.
Why thank you! :)
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