3 B S c i e n t i f i c ® E x p e r i m e n t s
1
OBJ ECT IVE
Measurement of friction forces.
UE102050
Mechanic s / Force s
Static and Dynamic Friction
SUMMARY
In order to measure dynamic friction, a friction measuring apparatus is used. It is com-
posed of movable friction strips, which are pulled from under a stationary rough body
connected to a dynamometer at constant speed. In order to vary the effective weight (and
therefore the normal force) of the stationary body, the angle of the track can be set to any
angle.
E XPERIMENT PROCEDURE
• Comparison of static and
dynamic friction.
• Measurement of how dynamic
friction depends on the area in
contact.
• Measurement of how dynamic
friction depends on the combi-
nation of materials.
• Measurement of how dynamic
friction depends on the perpen-
dicular force between the two
surfaces (normal force).
Quantity Description
Number
1
Friction Measuring Apparatus
U8405100
required apparatus
