ANNOUNCEMENTS FOR VELOCITY OF SOUND IN AIR LAB
(Updated August 26, 2007)
General Announcements : Uncertainty : Inclined Plane : Conservation of Mechanical Energy : Collisions - Conservation of Momentum : Conservation of Rotational Kinetic Energy : Simple Harmonic Motion : Velocity of Sound in Air : Standing Waves on a String
Important Announcements
1. Please check your lab grades on this web site. It is not unusual for errors to creep into the official records and it will soon be too late to correct them. If you spot a problem, first try contacting your TA to clear it up. The grades posted on the web do NOT yet include all of the penalties that may be assessed for issues such as arriving late to lab nor are they renormalized yet to correct for grading differences between the TA's.
2. If you missed a lab and wish to take a makeup lab, you must arrange that as soon as possible. Even if you previously requested a makeup lab, you should confirm this request now. Students may only do one makeup lab. These are offered from 8:30 AM - 11:30 on the first Reading Day before Final Exams (Monday, December 10th). The finished reports are due in by 6:00 PM of that same day. These labs will be supervised and graded by someone who may not be your regular TA.
There are four setups for Lab#7A and four for Lab #7B in each room. You will switch experiments 90 minutes into the period.
For Lab #7, there is no report and the worksheet should be completed during the lab period and handed in with the notebook copy. Simply hand the necessary material to your TA before you leave the lab and you are finished with physics lab for the semester. The worksheet for Labs 7A & 7B will be graded as a single entity, worth 30 points total.
Your TA will distribute a Lab Evaluation form that should also be handed in (placed in the envelope supplied for this purpose) before you leave the lab. These forms are for our internal use; they will be reviewed (after grades are in) as part of our regular efforts to improve the intro physics labs.
ANNOUNCEMENTS FOR VELOCITY OF SOUND IN AIR LAB
Note in the picture below that the microphone is positioned right up against the end of the tube. There are several noise-makers available in the lab, including toy clickers, bottle caps (their tops make a snapping sound when flexed), pieces of metal and wood, a tuning fork and the metal spheres shown in the picture below. However, we have found that a snap of your fingers often works best.
General : Uncertainty : Inclined Plane : Conservation of Mechanical Energy : Collisions - Conservation of Momentum : Conservation of Rotational Kinetic Energy : Simple Harmonic Motion : Velocity of Sound in Air : Standing Waves on a String