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What happens when a sound wave hits a concave shaped surface? ... Is the sound reflected back to the source from a concave shaped surface more or less than that reflected from a flat surface? ... When sound reflects off a special curved surface called a parabola, it will bounce out in a straight line no matter where it...
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www.ndt-ed.org/EducationResources/HighSchool/Sound/refl...
www.ndt-ed.org/EducationResources/HighSchool/Sound/reflection.htm
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Reflection (physics) - Wikipedia, the free encyclopedia
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Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated. Common examples include the re...
en.wikipedia.org/wiki/Reflection_(physics)
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The teacher’s voice can be spread throughout the room by shaping a sound-reflecting gypsum board ceiling over the front of the room, or by making the center of the ceiling a hard, reflecting surface. These surfaces will reflect sound toward the rear of the room.
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asa.aip.org/classroom/booklet.html
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Any material that is solid or liquid reflects sound. An interface between liquid and gas (like the surface of a pool of water) will reflect sound. How well things reflect sound is another question.
http://answers.yahoo.com/question/index?qid=20090310124...
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Matter and Materials: Grade 4 - Materials That Transmit, Reflect, or Absorb Light or Sound ... demonstrate understanding that certain materials can transmit, reflect, or absorb light or sound;
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www.gecdsb.on.ca/d&g/scitech/science/strands/mm4.htm
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Effectivelly, all materials reflect light to some degree or another. Even clear materials (such as glass) reflect a small amount of light, and, under the right circumstances, can act as a mirror, even without any backing matterial.
http://wiki.answers.com/Q/What_materials_reflect_light
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Light and sound comes into SC4, Physical Processes, and, in my experience, is studied as two separate units, with a number of lessons devoted to each. For most pupils, investigating light, how it travels, what stops it and which materials reflect it, is ... For example, with both light and sound, ... Teaching materials...
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www.teachingexpertise.com/articles/key-stage-2-science-...
www.teachingexpertise.com/articles/key-stage-2-science-lesson-reflecting-light-and-sound-2561
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All materials reflect sound more efficiently at some frequencies than at others and, in most cases, high frequencies tend to be absorbed more readily than low frequencies. This produces a longer reverberation time at low frequencies than at high frequencies.
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www.soundonsound.com/sos/oct01/articles/advancedreverb1...
www.soundonsound.com/sos/oct01/articles/advancedreverb1.asp
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Here are some interesting facts about sound. ... Sound can travel through materials. ... Hard materials can reflect sound so that the sound travels back in the opposite direction. This is called an echo.
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www.prisci.gold.ac.uk/hearingwhispers/facts.htm
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