For today's class, we did a lab activity involving the speed of sound. Using a 1000-mL graduated cylinder, a glass tube that was approximately 40cm in length and 3.5cm in diameter, water, metric ruler, thermometer (non-mercury), 3 tuning forks with different frequencies, and also a tuning fork mallet, we were able to do perform the lab.
The objectives of this lab:
- Collect and organize data to obtain resonant points in a closed pipe.
- Measure the length of a closed resonator.
- Analyze the date to determine the speed of sound.
To perform the lab, measure the air temperature inside the glass tube, as well as its diameter, that is placed inside the water-filled graduated cylinder. Once this is done, strike the tuning fork, while holding it by the base, and place the vibrating fork over the open end of the glass. Then slowly raise the glass tube and the fork until you hear the loudest sound produced. Once you've figured this out, measure the distance from the water to the top of the glass tube and record this data.
*To completely figure out how to do this lab, the objectives and procedures are found on pages 28-30.
*Questions for this lab is found on page 30.
NOTE: This lab is due on the day of our test, which maybe next week. The whole booklet will be handed-in that day.
: For tomorrow's class, pages 26-27 (# 10-16 ) of the Sound Unit booklet will be checked.
Next scribe: Eric Vitug
1 comment:
Great description of the class. Well done.
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