Tuning Fork Lab
Guiding question:
How does density of various solids affect the wave sound waves travel from the tuning fork?
Hypothesis:
I think that all the materials will have a different sound and a bigger frequency.
Data Analysis:
| Material: | Density: | Observation: |
| Locker | 7.85 g/cm 3 | Tuning Fork 480 B: Very high pitched, proves that that the smaller they are the louder they sound. sound lasts for 17.69 seconds. a lot less vibration than with the larger one. Tuning Fork 256 C: lower pitched, sound is slightly harder to hear (not as loud) sound lasts for 15.03 seconds. a lot more vibration with this one than with the smaller one. |
| White Board | 2.8 g/cm 3 | Tuning Fork 480 B: less vibration lasts for only 9 seconds. Tuning Fork 256 C: loud! not as much vibration as with lockers. sound lasts for 18.65 seconds. |
| Desk | 0.75 g/cm 3 | Tuning Fork 480 B: Just as loud as it was against the locker, sound lasts for, 12.35 seconds. Tuning Fork 256 C: Sound lasts for 30.73 seconds, More vibration than on white board and lasts for longer. |
| Wall | 3.12 g/cm 3 | Tuning Fork 480 B: Lasts for 20.75 seconds, more vibration than other ones. lasts longer than dest Tuning Fork 256 C: Sound lasts for 34.0 seconds, not very high vibration. |
| Wooden Floor | 0.50 g/cm 3 | Tuning Fork 480 B: last for 9.44 seconds, same vibration amount as locker, very hollow sounding. Pitch lower Tuning Fork 256 C: Lasted 30.43 seconds, vibration not very high, pitch was high sounding. |
| Cement floor | 3.12 g/cm 3 | Tuning Fork 480 B: Lasts for 7.05 seconds, vibration high, pitch higher than mlst tries. Very loud, loudest one. Tuning Fork 256 C: Sound lasts for 27.25 seconds, vibration very high, higher than usually but not as high as last try. |
Conclusion:
The bigger the fork the lower the pitch and the smaller it is the shorter it goes. The best sound we got from the both forks is from the locker. All related to the forks when you put them against you lips or put your finger in between the two metal things then your finger feels really weird and fuzzy.
Further Inquiry:
If i were to improve my lab then i would, try the fork on different items. I would also make more then one observation on one item. The things i did good, would be everything because i helped with everything and i was a good partner.
Sites that you used:
No research was done.
Where did you find the densities from?
ReplyDeleteThe materials and procedure need to be before the data table.
The data table was well designed and detailed observations were good.
Why do you think the best sound came from the locker? What evidence did you collect that could help you to answer the guiding question. Was your hypothesis correct?