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Physics of Sound

Physics of Sound. Investigation 4: Sound Challenges Part 1 Sound Challenges. objectives. Decrease the volume. We have a challenge for you. We have a problem. The volume of the tone generator is very loud, but I cannot decrease the volume.

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Physics of Sound

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  1. Physics of Sound Investigation 4: Sound Challenges Part 1 Sound Challenges

  2. objectives

  3. Decrease the volume • We have a challenge for you. • We have a problem. The volume of the tone generator is very loud, but I cannot decrease the volume. • We challenge you to design a way for the least amount of sound to reach our ears. • Think-Pair-Share: • What are some possible solutions?

  4. Test the solutions • Which solutions could we test? • Cover the sound source. • Cover the sound receivers. • Let’s try covering the tone generator with a plastic bin. • What has happened to the sound? • Where are the vibrations now? • Try covering the sound receivers. • Which way worked the best to silence the sound?

  5. the challenges • We successfully solved the challenge of silencing the sound. • First, we worked as a group to identify possible solutions. • Next, we tested the ideas and decided on the best solution. • Finally, we identified the reasons the methods worked well. • Today we will use our knowledge of human ears, sound sources, pitch, and the way sound travels to solve a number of challenges.

  6. The instruments • Each challenge involves one of the instruments we used in previous activities. • Remember how to use the instruments appropriately. • Kalimba • Xylophone • String telephone • String beam • Tuning fork • FOSS-ulele • Waterphone • Minigutbucket • Long gong

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