B. [4] Go to this website: http://www.nde-ed.org/EducationResources/HighSchool/Sound/reflection.htm and click on the loudspeakers to display the animations. Answer the listed questions: [1] What happens when a sound wave hits a concave shaped surface? b. [1] Is the amount of sound energy reflected back to the source from a concave-shaped surface more or less than that reflected from a flat surface? c. [1] What happens when a sound wave hits the porous surface? d. [1] What happens when a sound wave hits an irregular surface?

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