Fundamentals of Physics Laboratory in General Physics II | PHY 213, Lab Reports of Physics

Download Fundamentals of Physics Laboratory in General Physics II | PHY 213 and more Lab Reports Physics in PDF only on Docsity! Phy213: General Physics II 1 Instructor: Tony Zable Phy 213: Fundamentals of Physics Laboratory The laboratory portion of the Phy 213 course represents 20% of the total class grade. The laboratory work will evaluated based on the following criteria: A. Weekly Lab Assignments (5 pts): Each week students will be given an experimental exercise worth 10 points each. Students are required to complete 9 of the 10 assignments. Satisfactory completion of a lab assignment will include: 1. completed preliminary questions 2. completed data table(s) 3. appropriate analysis of experimental data, including appropriate error analysis 4. thoughtful answers to all questions posed in the experiment packet. Lab assignments are due 1 week following completion of the experiment, at the beginning of the lab period. It is expected that all preliminary questions will be completed (or at least attempted) before the lab session begins. Each completed lab assignment is due at the end of the lab period the exercise was performed. B. Laboratory Summary (Write-up) Format: (5 pts) In addition to the satisfactory completion of the in-class lab exercise, a one-to-two page typewritten summary sheet is required to be turned in with each completed experiment (stapled to the front of the lab packet). The summary sheet should contain the following elements: Title of the Experiment Objective(s)  1 or 2 sentences describing the ultimate goal(s) of the experiment/exercise Concept Theory  Description of the physics to be tested or utilized in the experiment. This section will also hold the underlying equations used to obtain your final results. Result(s)  The final result(s) obtained from the experiment. This section should be very short but should include appropriate analysis of experimental error/uncertainty. Summary Paragraph (containing concluding remarks)  Describe what you learned from the experiment  Include appropriate procedural comments as well as explanation and justification of experimental error.  Discussion of graphs, etc.  Discuss concepts that may still confuse you after the experiment was completed Phy213: General Physics II 2 Instructor: Tony Zable Notes: 1. Completed lab packets and write-ups are due at the end of each lab session. 2. Attendance during lab sessions is mandatory. 3. 9 of 10 labs are required. The additional lab may be turned in for extra credit. 4. Missing lab assignments cannot be made up without approval from the lab instructor. 5. Bring a lab notebook to lab sessions. Record all data and notes during lab experiment in the lab notebook before filling out your lab packet (in case you need to retake some of your data or recalculate a value). The instructor will not accept a sloppy lab packet. 6. All lab material is “fair game” for in-class exams, even if lab packets have not been handed back. Be sure you keep adequate lab notes in your lab notebook. Uncertainty Analysis and Propagation Every measurement has a range of uncertainty associated with it. This uncertainty is usually a result of precision limitations of the instrument used to make the measurement. Any calculations done using a measurement will also have a degree of uncertainty. This is a measure of how confident you are in the result of your calculation. The propagation of the uncertainties through various calculations has to be carefully considered. One way to proceed with the concept of uncertainty propagation is called the “Worst Case (or Min-Max) Calculation”, and is shown in the following two examples. Example #1 Consider the following measurements and corresponding uncertainties, which will used to calculate the area associated with the measurements. Length = 93.10 cm  .05 cm Width = 3.540 cm  .003 cm Areaavg = L  W = (93.10 cm)(3.540 cm) = 329.6 cm2 Uncertainty range: L & W both largest possible value: Areamax = (93.15 cm)(3.543 cm) = 330.0 cm2 (+.4 cm2) L & W both smallest possible value: Areamin = (93.05 cm)(3.537 cm) = 329.1 cm2 (-.5 cm2) The completed area value would be reported as: 329.6 cm2  .5 cm2