We dropped the mass a number of times until we were able to obtain acceptable data. If these numbers were incorrect, our final conclusion would be negatively affected.
We probably got such problematic data because of human error, or possibly even technological error. However, much was learned about relationships between different aspects of rotational motion and translational motion.
Data Data Analysis First, we derived an expression to use to calculate our Moment of Inertia for the experiment. We placed the motion detector directly underneath where the mass would fall.
We found that, theoretically, it should equal 2. Conclusion In our experiment, we wound up with a very high percent error. The motion detector may have not been set up correctly, or the mass may not have been released from the pulley at the exact time needed. This is because we obtained very faulty data.
In this experiment, we did fulfill our purpose to measure translational acceleration, however, we did not prove that the rotational motion of the pulley was consistent with that of a disk.
We know that we obtained faulty data because our acceleration was measured to be greater than acceleration due to gravity 9. Since the translational acceleration is equal to the angular acceleration times the radius, the angular acceleration is equal to the translational acceleration divided by the radius.
We used existing torque and Inertia equations to derive the formula and found that our Moment of Inertia was equal to 0.
It is also possible that there were some errors in measuring the mass and the radius of the pulley and the mass of the weight that we used.
Procedure In this experiment, we first set up the pulley system and tied the mass to the pulley so that, when dropped, the mass would fall over the edge of the lab table. This could be due to a number of things.
We taped a notecard to the mass so that it would be easier for the motion sensor to detect. Also, from the first step of our data analysis it is easy to see the relationship between the translational acceleration of the falling mass and the angular acceleration of the pulley.
Powered by Create your own unique website with customizable templates. Second, we used the accepted Moment of Inertia equation for a disk to calculate what our Moment of Inertia should be.
We found that we had Once this data was collected, we used LoggerPro software to create a more clear graph and to compute a best fit line, and, therefore, the acceleration of the mass as it was dropped from the pulley.Lab 7 - Rotational Motion Purpose: This Lab is intended as an introduction to the concepts of rotational inertia, rotational energy, and angular momentum.
We will calculate these values through three “standard” setups that you. Rotational Motion: Moment of Inertia Objectives • Familiarize yourself with the concept of moment of inertia, I, which In this lab the force (F) comes from the tension (T) in the string that is acting perpendicular to the lever arm r, which here is the radius of the.
The numbers that will be found are the moment of inertia and frictional mi-centre.comonal Motion: Moment Overview 3 This lab report will outline the experiment looking at rotational motion and the moment of inertia.
Chapter 9 Rotational Motion Purpose In this experiment, rotationalmotion will be examined. Angular kinematic variables, angular momentum, Newton’s 2nd law for rotational motion, torque, and moments of inertia will be explored.
Introduction Note: For this experiment, you will write a complete (formal) lab report and hand it in at the. Physics’’Laboratory’–’Introduction’to’Physics’I’() —(3(— 2. mi-centre.comopesarespinningtopsthatareputinafreelymovingcradleto. Experiment 7 Rotational Motion Goals 1.
To understand the rotational motion of a rigid body. 2. To study properties of the moment of inertia and its effect on rotational motion. 3. To explore the use of least-squares fitting procedures in analyzing a dynamical Following the steps on the lab report form and using the result from step 4 and.Download