Sliding Friction Experiment, ScienceWorkshop
- Relationship between Frictional Force and Normal Force
- Coefficients of Friction (Kinetic and Static)
Sliding Friction Experiment, ScienceWorkshop
EX-9938
Sliding Friction Experiment File
(426 KB – zip)
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In this experiment, students use a Force Sensor to discover frictional forces and their effect on the motion of an object. In addition, the coefficients of friction for various surface combinations can be empirically determined.
Using DataStudio, a graph is created which displays the force vs. time for the friction tray in real-time. A friction tray is pulled from rest using a Force Sensor until it moves with constant velocity for a few seconds. The maximum force on the graph is the maximum static frictional force. The force applied to the tray during constant velocity motion is equal to the kinetic frictional force. The tray mass is then varied to discover the relationship between these two frictional forces and the normal force on the tray.
The experiments can be repeated for felt, cork and plastic surfaces.
PASCO Advantage:
The Force Sensor allows students to collect data that is often shown only as a sketch in a textbook. Both static and kinetic frictional forces can be identified and easily measured using DataStudio software. In addition, the effect of these frictional forces on the motion of an object is more clearly understood.
This experiment is available for Download at no additional cost.
This experiment can be run using DataStudio, available as a Download or upon request.
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Graph of friction force versus normal force to find the coefficients of static and kinetic friction.
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