Fun with Friction III
Students will explore the connection between the area of contact and the friction force in this third installment on friction from Edward Nodding
PASPORT Force Sensor
(PS-2104)
ScienceWorkshop Force Sensor
(CI-6746)
Lab Summary
Explore the connection between the area of contact and the friction force.
In this third installment on friction from Edward Nodding, we investigate the relationship between friction and the area of contact between an object and a surface. In the lab, students will observe the result of doubling the area of contact without changing the mass of the object.
Students will rediscover that the friction force depends on the normal force (See also Lab 2 from the June, 2002 Newsletter) but does NOT depend on the area of surface in contact nor on the pressure (force per unit area) between the two surfaces.
Published: November 2002
Downloads
- Fun with Friction III - PASPORT (900 KB, .zip)
Includes experiment setup, procedures and DataStudio files
- Fun with Friction III - ScienceWorkshop (1.01 MB, .zip)
Includes experiment setup, procedures and DataStudio files
Here's What You Need
U.S. Educator prices shown.
Probeware (PASPORT System)
PASPORT Force Sensor (PS-2104) - $110
Designed to measure both pulling and pushing forces. Uses range from collisions to tug-of-war. For use with PASPORT Interfaces.
Xplorer GLX (PS-2002) - $349
The Xplorer GLX is a data collection, graphing, and analysis tool designed for science students and educators.
Probeware (ScienceWorkshop System)
Economy Force Sensor (CI-6746) - $119
Designed to measure both pulling and pushing forces allowing labs from cart collisions to tug-of-war.
750 Interface, USB (CI-7650) - $679
The 750 Interface allows students to measure force, temperature, pressure, angular velocity, acceleration, current, and magnetic field with a built-in function generator and oscilloscope mode.
Other Products
Friction Block -- IDS (ME-9807) - $21
Replacement friction block for the Introductory Dynamics Systems (ME-9429A, ME-9452).
