Lab 5.docx - Torque Lab Evan Benham Doug Huynh Hadrick...

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Torque Lab Evan BenhamDoug HuynhHadrick Green4/26/2018 PHYS 1410L-823 Objective: To apply known torques to a system and observe the changes in rotational motion. Specifically, by calculating the angular acceleration measured and determine the moment of inertia of the system.
Theory: The experiment will test the effect of a constant torque has on a circular object in constant rotation. The experiment will yield how the moment of inertia is impacted and the process of energy conservation. A large disk with several pulleys was mounted onto a rotary machine. Various masses were hung to test the inertia. The general idea of the lab is that the conservation of energy would be the same as the initial angular velocity. Equations: 1.t=Iθ Angular acceleration where t is torque and I is the moment of Inertia 2.I=ΣMiR2iI=mr23.t=Tr 4.mg-t=ma T=m(g-a) 5.m(g-a)-t=Iθ combination of equations 1,2,3. 6.A=θr 7.m(g-θ r)=Iθ +t Equipment: Photogate and Physics software; Rotational Motion A rotary machine Hanging mass and string Meter stick and scales Procedure: 1.) Measure and record in Table 1 the mass (M) of the platter, its diameter (D), and the radius of the central spindle (r)2.) Double click on the LabView folder and then on the “Rotational Motion” icon. This brings the Home Page for this experiment on screen. Enter your names here3.) Set the platter rotating and with the mouse button click on “Photogate Test” then start. The green signal light should flash on and off if the photogate is operating correctly. Click on stop.
4.) Wind the cord around the center spindle of the system, in one layer if

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