By Jonah Walker Prediction I predict that the sound waves will move the salt around and will arrange it into different shapes or patterns The shapes or patterns will be based on the different sound frequencies I think each note will have a pattern and each pattern will be unique ID: 544424
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Slide1
What is the effect of sound waves on salt?
By Jonah WalkerSlide2
Prediction
I predict that the sound waves will move the salt around and will arrange it into different shapes or patterns. The shapes or patterns will be based on the different sound frequencies. I think each note will have a pattern, and each pattern will be unique
. Slide3
Procedure
First, I attached a 2.5-foot PVC tube to a cylinder with another short tube sprouting out of it. Next, I cut the top off a non-inflated balloon and stretched it over the top of the cylinder. Then, I secured the balloon with three rubber bands. I sprinkled salt on the balloon, and hummed all the notes in an octave into the long tube.Slide4
Data /Observations
Note
Frequency
Pattern Description
Eb
1.24 kHz
Wide oval with a
circle in the center
E
1.32 kHz
Cross
with rounded corners and a circle in the center
F
1.39 kHz
Rhombus
shaped
G#
1.66 kHz
Complex,
layered circlesSlide5
Conclusion
I conclude that certain frequencies made very clear patterns with the salt, and others more vague.
I
f
the
frequency
is higher, the pattern is more complicated. If lower,
it’s
less complicated. The
salt
moves around faster on the balloon on higher notes because the sound
waves
are more frequent
.Slide6
Links
My Cymatic Sounder
How
to make a Cymatic
Sounder
Complex
C
ymatics