![]() You should now have a linearly increasing portion clearly seen on the screen. With the section now highlighted, click "Graph” → “Zoom in”. Touch and drag over the portion of the graph that data from the freely moving masses it should include a very sharp increase). This graph shows us the speed of the mass over time. Now, click on “Graph” at the top of the screen, then click “Show Graph” and select “Graph 2”. Release the larger mass while the data acquisition is running and stop the acquisition once the system has come to a stop by pressing the red stop square at the bottom left corner of the screen. If the hangers sway from side to side when released, the system it not properly aligned. The masses must both be properly aligned such that they will move straight up and down. To get your data, you must elevate the larger mass, with the smaller mass on the ground (no slack in the string). Clicking the green play sign on the bottom left corner of the screen will now activate the data acquisition. Select "Pulley (10 Spoke) in groove" and click OK. Once the system is connected to the photogate and turned on a screen will be shown. The photogate is connected to the LabQuest data acquisition system that must be configured properly before measurements are made. The pulley system is connected with a photogate timing system that will allow us to determine the acceleration of the masses when set into motion. Also note that an impact pad (carpet) should be placed below the system. This is to ensure that masses will not strike the pulley system. Note that when one mass is on the ground, the other mass should be 20-30 cm below the pulley. For each set of masses listed in the tables, prepare the Atwood machine. ![]() Once you have all the accelerations, begin at #3 below. Watch the video to obtain the 3 accelerations needed for each table. The general procedure for the data acquisition is written here for your reference. Theoretically, the magnitude of acceleration produced is given by Imz-mil 9 (mz+m) a = Procedure : A Video will be referenced to obtain your data for this lab. The weight imbalance produces a net force acting on the system of masses and accordingly produces their acceleration. By attaching two mass hangers to the ends of a long string and suspending them over the pulleys, different masses can be placed on each hanger such that there is an imbalance. The Atwood machine consists of a stand with two pulleys mounted on top. By use of an Atwood machine, we seek to experimentally verify this law. Physics 101-121 Lab #6 Newton's 2nd Law and the Atwood Machine In this lab we will be investigating Newton's Second Law of Motion which states that a net force, EF, acting on an object of mass, m, produces an acceleration, a.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |