비쥬얼 top_logo HOME POSTECH PHYSICS CONTACT US
일반소개 HOME :: 일반물리실험II > 일반소개

INTRODUCTION TO GENERAL PHYSICS LAB I

 

 

I. Objectives

 

The experiments in this laboratory course have been chosen to make the students to have hands-on experiences on basic principles of physics learned in the lecture and to prepare them for the advanced courses which will be taken in the future. In particular, these experiments have the following objectives;

1. to acquaint the students with the techniques and apparatus used in physics experiments,

2. to demonstrate the physical concepts and principles learned in the lecture,

3. to introduce the methods of data analysis, and error analysis for real data,

4. to prepare the students for the experiments which they will take in the future advanced courses.

 

 

II. Lab Grades

 

The lab grades are given according to the relative excellency criteria.

The code of academic honesty and integrity must be honored during the whole lab experiments as in other classes. If it is found to be violated in your report or exam, the grade will be confiscated.

 

 

 

III. To The Students

 

A. General Comments

Because there are a large number of students enrolled in the physics laboratory course, a discipline is necessary in order to run the laboratory class.

You have to attend the lab class at your officially assigned time. Make-up labs are not permitted, except under very unusual circumstances; so be careful not to oversleep or "forget!" If you have a legitimate reason for not being able to attend the class at a scheduled time because of an unavoidable incidence such as a family funeral or serious illness, you should arrange for a make-up class as follows:

Notify your instructor in advance stating the reason for missing the class, later with official supporting documents which proves your request. Then youl determine when you make up for the lab. Except in the case of a sudden emergency (car crash, etc.) you are expected to request a make-up BEFORE you miss the lab.

In any event, the missed lab make-up must be made within One Week after the date of the missed lab. You will not be accepted into any lab other than the one you are assigned unless proper arrangements have been made by your instructor. The above regulations are necessary to prevent overcrowd or impediment of the class by the student who missed an experiment.

 

B. Preparation for Laboratory Experiments

The experiments you will do in the laboratory are designed to be completed in the laboratory during the class hours. The lab reports must be submitted before the end of each class. It is expected that you have read the manual carefully before the experiment.

The properly prepared students are expected to arrive at the lab class with the following things prepared. You should prepare the tables for the experimental results when needed. You should know which equations you will be using for your result analysis, and how to estimate errors for your data. Your laboratory instructor will check such preparations before starting the lab, asking a few written quiz questions.

It is always the responsibilities of students to bring the following items to lab if their use is indicated by the lab manual.

1. Calculator

2. Graph papers; linear, log-log, and semi-log scales, always using 20 lines/in. or 10 lines/cm with every tenth line darkened.

3. Compass

4. Protractor

5. Colored pens or pencils

6. Drawing triangles or flexible curve.

 

C. Pre-Lab Test

The pre-lab test is due by the beginning of the lab. The purpose of this test is to test your knowledge and understanding of the key concepts and procedures of the lab you will undertake. In addition, you might be asked to sketch a graph of the expected results, or you might be asked to carry out a simple calculation using one of the major equations in the lab manual. This must be submitted before the start of the lab.

Ⅳ. Laboratory Reports

Writing a lab report is important.

Your final report should include the following things:

1. Title page including the following information

- Title of experiment

- Date of Lab Class

- Report Submission Date

- Your name & Student ID No.

- Your lab partners' name

- Your instructor's name

2. Lab report including the answers to question on each experiment

- Work sheet

- Data sheets

- Calculation results with appropriate units

- Analysis results (tabular and/or graphical in nature)

- Conclusions including error analysis

 

This lab report must be submitted to the instructor before you leave the lab. A late report will cost a minimum loss of 20% per day and no point will be given after a week.

The data should be written in a neat, clear tabular form. Each table should be clearly labelled. All original data sheets must be turned in as part of the report. Recopying data sheets is unnecessary.

 

All calculations used in getting the results from the data should be clearly shown. If the results used the same set of equations repeatedly, a single complete calculation of one result has to be included in the report.

 

The experimental results together with the estimated uncertainties should be clearly expressed in the report (e.g, g = 980.1±0.3 cm/sec 2 ). If your results require graphs you should use a single sheet of graph paper for each graph. Always be sure to use a maximum area of each sheet of graph paper by selecting an appropriate conventional scale, i.e, 1, 2, 5, 10, etc.

 

The conclusions you draw from your experiment should be written clearly including the following:

1. What has been found in the experiment.

2. How well it is verified, or what discrepancies are found.

3. A discussion of the probable sources of errors together with suggestions for improvement the techniques. This discussion often shows how well you understood the experiment.

4. The meaning and interpretation of the graphs you draw.

 

The lab report should not copy the manual. Items such as the list of apparatus and procedure given in the manual should not be repproduced in your report. However, procedures you followed differently from the manual must be carefully stated.

 

※ Warning

1 . Always keep the ethics code; never copy other's work including your lab partner's.

2 . But data can be shared within the team members .

3 . Do not submit the work violating the plagiarism rule.

V. The Relationship Between Students and Lab Instructor

You can discuss with your instructor during the lab or outside the class on the physical concepts and ideas you are working on. You are strongly encouraged to do so. In no case will the grade you will be affected by asking silly or trivial questions.

 

 

Ⅵ. Final lab test

At the end of the semester a closed-book lab test will be given. This test will contain questions where you will make experimental measurements similar to the ones given in the lab.

 

 

Ⅶ. Other Regulations

1 . Food and beverages are not allowed in the lab.

2 . Clean your experiment area when you leave the lab, after finishing the experiments.