The
Mass-Dependence of Friction
Overview
You have developed many skills in lab so far: expressing uncertainties,
setting up and using the equipment and software properly, understanding
kinematics, and drawing free-body diagrams. You are ready to make
a prediction and test it. You are to predict which variables
associated with friction are dependent on mass and then run an
experiment to see if you are correct.
There are two parts to this experiment. Part I concerns the
theory and Part II, the experiment. This worksheet begins with
questions from Part I that you should try before coming to lab.
If you come to lab without having done Part I, go immediately to Part
II and collect the raw data (#4 and the yellow boxes of #5 on the
worksheet). Then return to Part I. The calculations of #5
can be
done later, although of course it is preferable to finish while you are
still in lab and can direct any questions you might have to your lab
instructor.
Today's equipment and example
data
Part I
Part II
Worksheet
Index
