# Correlation Between Wood And Aluminum Surfaces And Their Friction Essay

1440 WordsNov 19, 20166 Pages
This experiment examined the relation between wood and aluminum surfaces and their friction. The coefficient of static and kinetic friction can be derived from the experiments with the use of a horizontal Atwood’s machine and a Super Pulley. The static friction was tested by setting up an equilibrium with the hanging mass and the frictional force. Three tests were conducted with increasing additional mass on the friction block. An unbalanced force was required to test for the coefficient of kinetic friction. This is possible through solving for the acceleration of the unbalanced force. The total mass of the system is constant through all four of the tests, but different masses were added to the hanging mass so that the acceleration would have a variety of different accelerations to accurately solve for the kinetic friction. As a result, our coefficient of static and kinetic friction are μs = 0.26 ± 0.02 and μk = 0.30 ± 0.01 respectively. Introduction According to Collin College, the coefficient of static and kinetic friction are μs = 0.30 and μk = 0.20 respectively. However, the lab material has worn out over time, so their coefficient of frictions may be different from the regular coefficient of friction. The purpose of this experiment is to determine the coefficient of kinetic and static friction between aluminum and wood in the lab. These were determined with the use of a horizontal Atwood’s machine The test conducted on a horizontal Atwood’s machine was accomplished by