What Could You Use To Refract Sound

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1. Try speaking to someone across the room. What happens when you place a hard object in front of your face while you talk? What is happening to the sound? Repeat with an object that is softer. What happens to the sound now? The sound is reflected off of the hard object. You can still hear what is being said, but it is quieter than if no object were present. The sound is still fairly loud because the object is dense. Dense objects tend to reflect sound rather than absorb it. When a soft object is used, the sound is absorbed. Since the sound is being absorbed, it is much harder to hear and understand what the speaker is saying. Soft objects will absorb much more sound than dense objects because their lower density allows them to absorb the sounds.
2. Have a friend stand facing one side of a door, with the door nearly …show more content…
This is possible through the process of diffraction. The sound is traveling around an obstacle which allows it to still be heard. The sound waves are bending and changing direction to move around the boundary. The sound is much quieter, but it is still able to be heard.
3. What could you use to refract sound? Think of a way to demonstrate sound refraction. One example is sound traveling from air to water. Can you find a different medium here in the building that would demonstrate the same concept? You could try putting your ear up to the glass and have someone talk on the other side. This would be using air and glass as the two different mediums for sound to travel through. It would obviously be harder to hear when two types of mediums are involved in transferring the sound. The frequency will remain the same between the mediums, but the wavelength of the wave will change. This change in wavelength will result in the sound being harder to hear through the glass.
Summarize your findings, related to the boundary behaviors of reflection, absorption, diffraction, and refraction in a short
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