Physics 173 Internet
Question of the Week
February 2 - February 6, 1998
Davidson College's Physics Department runs a very active web-based
program. In one of the classes, students conduct an extensive
project in which they design and conduct an experiment. They
present their findings in the form of a web page which is
available for all to see -- even Glenbrook South students who are
doing Internet Questions of the Week. For this week's search
question, you will visit Davidson College's site and look at a
student lab report pertaining to a friction experiment. Log on to
theWorld Wide Web and visit
This page is the title page for a lab report in which a student
has performed an experiment to study the coefficient of friction.
The experiment utilizes a variety of principles and/or equipment
which we are familiar with such as a sonic ranging device, a
two-body/hanging mass apparatus, etc. Much of the physics behind
the project should be understandable to you. Click on the link
from the Title Page to the Table of Contents Page. Using the Table
of Contents page as a home base, investigate the
student experiment in order to respond to the following questions.
Do a bang-up job on these questions since they are worth two of
the three extra credit points for this week.
Respond to the following questions:
- Discuss the purpose of this student's experiment.
- Describe the apparatus and the procedure used by the
student in order to accomplish the purpose of the study.
- Discuss the theoretical information which the student was
aware of in order to determine the coefficient of friction of
- Discuss a few of the findings of the experiment.
A 65-N force at an angle of 25 degrees is
applied to drag a 15-kg table across the room. The coefficient of
friction between the table and the floor is 0.42. Draw a
free-body diagram depicting the forces (direction and type) acting
upon the table and calculate the acceleration of the table and the
speed of the table after being pushed with this force for 4.0
a velocity-time graph to describe the table's motion.
South Physics Team -
4000 West Lake Ave
Glenview, IL 60025 - 1200
Page Maintained by: Tom Henderson
Last Updated: February 2, 1998