Atwood Machine - Lab report. PDF

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Atwood’s Machine PHY 1611

Introduction An ideal Atwood’s machine consists of a frictionless, weightless pulley that has a string with two masses on either end running over it. This lab showed us how to use an Atwood’s machine to demonstrate Newton’s second law. Newton’s second law states that F=ma or inversely that a=F/m. Through experimentation with the Atwood’s machine we were able to observe that acceleration and force can be kept constant by manipulating the other variables in

the equation.

Conclusion In this lab, we learned about Newton’s Second Law and the functions of an Atwood’s machine. We had fairly high percent error for a lot of our calculations, which I think was due to either incorrect calculations or improper use of the Atwood’s machine. We had some trials where the weights bumped, which we repeated, but I think that we should have been more careful in setting up the machine. We learned about how to keep acceleration and force constant even with changing masses on both ends of the string....