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Acoustics!

Melody Makers

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What is Acoustics?

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Acoustics

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The science of sound!

sound is just vibrations!

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Acoustics

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The science of sound!

sound is just vibrations!

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Acoustics

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The science of sound!

sound is just vibrations!

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Acoustics

​

The science of sound!

sound is just vibrations!

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Wave Widget

{

Amplitude

{

Wavelength

What happens as we change our wave?

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Questions

  • How fast is a sound wave?
  • What happens if we played sound in water?
  • What happens if we played sound in space?
  • What happens when we play multiple sounds at once?

761 MPH!

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Adding Waves

Let’s predict the resulting sound…

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+

louder!

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+

nothing!

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What does this sound like?

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10 Hz (Fundamental)

20 Hz

30 Hz

40 Hz

50 Hz

60 Hz

70 Hz

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Harmonic Series Demo

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Sound Analyzer

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Harmonics

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Get ready to rumble…

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Beads!

  • Small, grainy particles
    • Crystals
  • Bounce against each other a lot
    • Quickly organize into patterns

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Water!

  • Super, super tiny particles
    • H2O
  • Fluid (flow past each other)
    • Can see ripples and waves

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Oobleck!

  • Behaves like a solid and a liquid
  • More vibration = more solid

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Each tornado siren produces a frequency that harmonizes with the others!

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The plane produces sound waves behind it!

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The fire wave lines up with high and low air pressure!

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Sound in Other Fields

Medicine

Echolocation

Music

Drug delivery &

imaging

Animals sense location

Designing concert halls & studios

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Conclusion

Sound waves are physical phenomena, which we can change to create new sounds!

Using science to make better music

&

Using music to make better science

​

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Thank You!!!

Melody Makers