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HYPOTHESIS I hypothesize that all of the materials listed in the previous slide will decrease WiFi signal strengths, but the glass will have the least effect. Glass will have the least effect on the WiFi signal because it allows the low frequency light to pass through. I think that the metal door will have the greatest effect on the signal because it does not let as much light energy through. What materials reflect signals? What materials absorb signals?
Another thing it can do is move through the material, and depending on exactly how it does this, we might call it transmission, refraction, or absorption. We will discuss each in more detail in this lesson, but transmission of light is when light waves move all the way through a material without being absorbed. Transmittance When light moves through a transparent (or semi-transparent) material, it can be transmitted, absorbed, or reflected.