Jacques

1
Jacques

• By
• Brooke Cosko
• Colleen Dallons
• Guadalupe Garcia
• Victor Echeverria
• Mentors Jake and Jed

The change in barometric pressure due to altitude
versus sound.
2
Purpose/Hypothesis

• Purpose To see if the change of pressure changes
  the speed of sound.
• Hypothesis Sound would travel slower as pressure
  decreases.

balloon
microphones
gondolas
3
Method

• Equipment Balloon, helium, 2 gondolas, 2
  thermometers, 2 barometers, noise making device,
  and 1000 feet of line string.
• 2.98m from microphone to microphone
• Speed travels 343m/sec
• 100 samples per second
• .01sec.

4
Data
5
Tables
6

7
Conclusion

• Microphone sensitivity
• Muffler for wind noise
• Metronome loudness
• PVC pipes