The whole idea of subliminal messages has received a lot of interest and curiosity. Even though these messages are below our absolute threshold some people believe that they are picked up by our senses. Some people believe that these messages are real and do affect behavior. Others do not believe that we can pick them up with our senses and even if we could they would not have any effect on us. Go out to the web and research subliminal messages. Take a position on where you stand about the subliminal messages and their effect on behavior. Write a 150 to 200 word essay with support from your research.

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light