Name
Period
Date
Force of Friction Lab
PURPOSE:
To create graphical and mathematical representations of the relationship
between the force of friction, the normal force, and the types of surfaces.
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Open the Data Studio file Friction vs. Normal Force.
Mass the loose friction tray and record below. Do not separate the plastic tray
from the force probe!
Remember to tare (zero) the force probe with nothing attached to it before your
first trial.
Start with just the two friction trays, and then add 100 g = 0.100 kg into the friction
trays for each additional set.
Keep a single black bar mass on top of the constant velocity cart at all times.
You must select the region of the graph for each trial that corresponds to the
constant velocity part of the motion to measure the force of kinetic friction.
DATA
Remember:
Mass = 2 x
FN  Fg  mg
+
Mass of 1 tray
F f  F forceprobe
Mass in tray
Types of Surfaces (circle one):
Cork/Table
F fk
Mass
(kg)
FN
(N)
(N)
0
0
0
Plastic/Table