Sunday, March 13, 2011

Properties of Sound Lab


Experiment 1
Distance away from middle
Description of sound
1 cm
deep
2 cm
slightly deep
3 cm
medium
4 cm
higher
5 cm
highest
Experiment 2
Thickness of Rubber Band
Description of sound
Thick
Low drum
Thin
Higher drum

Tightness of Rubber Band
Description of sound
Loose
light
Tight
lighter
Tightest
lightest

Length of rubber band
Description of sound
Longestdeep
Long
slightly
Shortest
light




Conclusion Questions:
1.How did the sound change when you changed the amplitude (how far the rubber band was away from the middle point)?
When the rubber band was close it the sound was light. When it was far the sound was deep.
2.What happened when you changed the thickness, length, and tightness of the rubber band?.Sally is playing the guitar and notices that one of her strings is flat (pitch is too low). What can she do to fix it?
When the rubber band was thicker it made a deeper, sound. When it was thin it barely made a light sound.
3.Sally is playing the guitar and notices that one of her strings is flat(pitch is too low). What can she do to fix this?
She can make it tighter and pull the string, so the sound is better.

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