The list of students who have requested a make-up lab is here:

• Listed by student (PDF)
• Listed by section (PDF)

See your MyUW time schedule to find when and where your section meets.

You may also use the following link to the registrar's time schedule:

Autumn Quarter 2009 Time Schedule, Physics

A list of the 17 and 121 lab sections and TA contact information is at this link:

Sections and TAs

Pre-labs, post-labs, and credit for the in-class experiments will be on the internet on the WebAssign system. You can get to WebAssign from the physics 1xx website:

http://www.phys.washington.edu/1xx

You may also log directly into WebAssign at the following URL:

https://www.webassign.net/washington/login.html

Check your scores on WebAssign regularly. This is the record by which you will be awarded credit for the course. Mistakes caught early are usually easy to correct, whereas those caught after several weeks have elapsed may be difficult (or impossible) to correct.

When you log in to WebAssign for the first time, you will be asked to submit an entry code or pay for access with a credit card. See the Intro to WebAssign@washington for details on using WebAssign.

There are three parts to the lab course: (1) the online pre-lab, (2) the in-class experiment, and (3) the online post-lab. All three parts are required and contribute to your final lab grade.

Online pre-lab

The pre-lab is designed to give you some experience thinking about the physics theory that the experiment will study. To complete it, you will log on to your WebAssign account and first read the PDF tutorial that you can download from there. Then you will work the WebAssign problem sets that come with the pre-lab. These problem sets will give you some practice with lab calculations and related theoretical topics. More information on WebAssign is given below. If you have been keeping up with the reading in the lecture part of the course, the pre-lab should take about 45 minutes to complete.

The pre-lab deadline is midnight of the day before your lab section meets. For example, if your lab section meets 9:30 AM to 11:30 AM on Tuesday, you must complete the pre-lab by 12:00 midnight on Monday. There are no make-ups allowed for pre-labs, nor will late work be accepted for any reason.

In-class experiment

When you come to your lab section, you should bring the following:

• This manual, or at least the pages from the day's lab;
• A scientific calculator, such as a TI-83 or similar;
• Pencil or pen, and paper or a notebook.

The lab period lasts for 1 hour and 50 minutes. You will work with one lab partner (or occasionally, two) and collect data that you will record in the spaces provided in the lab instructions. As you do the lab, you will be asked to pause and record predictions about what you expect to happen.

As you do the experiment, you will need to get the TA to initial various boxes that verify you have done the parts correctly. Finally, at the end of the lab session, the TA will initial the front page of the instructions and record your satisfactory completion of the in-class part. You must have the TA's final initials in order to get credit for the lab. The in-class part will be graded "credit/no-credit."

Take the completed lab papers and data with you; you will need them in order to complete the online post-lab. Some steps in the labs ask you to discuss with your partner(s) various aspects of the experiment. Although you do not need to write anything down in the lab, you may need to answer the question in the post-lab, so you should be able to provide a sensible answer.

Online post-lab

After you have finished the in-class experiment and had the TA initial your papers, you may do the online post-lab assignment on WebAssign.

The post-lab questions are of two types:

1. Reporting of data and analysis. You will be asked to enter some data values that you took during the in-class session. This will require merely copying your results into the spaces in the question. For analysis done on the data, you may want to double-check your calculation to make sure you haven't made a mistake. In these cases, WebAssign will run the calculation that you should have done with your data. You may also be asked to write something that you would have discussed with your partners during the lab session.
   
2. Analysis tasks based on typical data. For example, a question might show a graph that would be found in a similar experiment, and you would be asked to read the graph and calculate a quantity in a way that you did in the lab.

The deadline to complete the post-lab is midnight, five days after your in-class session. The post-lab will be available for you to work on immediately after your in-class session ends. For example, if your lab section is Tuesdays from 9:30 AM to 11:20 AM, your post-lab will become available at 12:00 noon on Tuesday, and will be blocked on 12:00 midnight, Saturday.

You may not attempt the post-lab until you have completed the in-class session. If you miss the in-class session and need to make it up, you must notify the TA so that your post-lab assignment can be rescheduled. If the TA discovers that you have attempted the post-lab without completing the in-class part, your grade for the post-lab will be reduced (see below).

The post-lab should take about 15 minutes to complete.

Make-up labs

The policies for make-up labs are as follows:

1. Pre-lab make-ups will not be allowed for any reason.
2. If you miss an in-class session, you may request permission to attend another lab section during the same week. Permission must be obtained from your section TA as well as the TA for the section you wish to attend [or as a last resort, from the lab instructor.] Experiments completed in other than your regular session must be initialed by both the TA for the session you attended (to verify that you were there) and by your regular TA (so that the grade will be recorded). It is your responsibility to make sure your lab papers get initialed by both TA's! If you miss an in-class session, do not attempt the post-lab until the in-class session is made up.
3. Post-lab make-ups will only be allowed if the in-class session has been completed and granted credit. Generally, if you make up the in-class session during the week, you can do the post-lab before the closing date. If this is not possible, you should request an extension for the post-lab from the TA for your section. If the TA determines that you have a valid reason for missing the post-lab, and you have satisfactorily completed the in-class session, the post-lab due date may be rescheduled.
4. If the student requests to make-up a post-lab due to a failing score on the post-lab only, the TA may grant a second chance at the post-lab. However, the overall lab grade will only be set as high as necessary to pass the lab, regardless of the points earned in the second attempt.
5. You may, without penalty, make-up one failed or missed lab (in-class and post-lab only) during the final "make-up week" of the term. This may be either a "universal" lab, in which everyone does the same experiment, regardless of which lab they missed, or it may be particular missed experiment. You may not make up more than one lab without special permission from the faculty in charge of the course.

Labs will be graded on a 10 point scale as follows:

• Pre-labs, on WebAssign, will be worth 2 points. Since the purpose of the pre-lab is to give you practice working with the theory, you may submit answers to the pre-lab questions up to 50 times per question without penalty.
• In-class papers will be graded credit/no-credit. Credit = 3 points. No-credit = 0 points. If you show up for class and make a good-faith effort to complete the exercise, you will be awarded credit.
• Post-labs, on WebAssign, will be worth 5 points. This may seem like a large number of points for 15 minutes of work, but since the post-lab questions draw on the in-class activity, the grade really depends on how well you understand what happened there. You may submit answers to the post-lab questions up to 5 times for numerical-entry or formula-entry questions but only 1 time for multiple-choice, true-false, and essay-entry questions. (Depending on the question, the attempt-number policy may vary at the discretion of the instructor.) An attempt to complete the post-lab without prior credit for the in-class session will cost 2 points.

Each lab will be graded according to the 10 point scale. For any one lab, a zero on either the in-class papers or on the post-lab will result in a zero for that lab as a whole. To obtain credit for physics 117, you must have no zeros on any lab, and you must have earned 48 out of a possible 80 points, or 60%.