1 / 7

Starter

Starter. A student records the motion of a spinning object and obtains a theta vs. time graph. The computer gives a fit: q (t) = At 2 + Bt + C where A = 6.50 , B = .001 and C = 0.00. What is the experimental value of the angular

ronni
Download Presentation

Starter

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Starter A student records the motion of a spinning object and obtains a theta vs. time graph. The computer gives a fit: q(t)= At2 + Bt + C where A = 6.50 , B = .001 and C = 0.00 What is the experimental value of the angular acceleration a? (1/2)a= 6.50 so a = 12.0 rad/s2 Hint: consider qf = qi + wit + (1/2) at2

  2. Practice Recall from the circular motion study that: qf= qi + wit + (1/2) at2 wf= wi + at You will investigate these relationships.

  3. Procedure Connect the smart pulley to the Pasco interface. Start Data Studio. Select “ Create experiment”. Add the smart pulley sensor. On the 2nd measurement tab select “ angular velocity and angular position” using radian measure. Place a string and two weight hangers over the pulley as shown. Place a small piece of clay on one pulley. 7. Press collect and release the hangers.

  4. Analysis Obtain a theta vs. time graph. Fit a curve to your graph and make a print out. Obtain a angular velocity vs. time graph. Fit a line to the graph and make a print out. Find the experimental acceleration from your theta vs. time graph. Call this value E1. D. Find the experimental acceleration from your w vs. time graph. Call this value E2. E. Find the % difference between your two E1 and E2.

  5. Questions Write 1 or 2 paragraphs explaining the results ( your two graphs ) including an explanation of: 1. How you obtained the angular acceleration from each graph. 2. How the graphs compare to the y vs. t graph and v vs. t graph for free fall.

  6. Lab Report Checklist Cover Sheet Two Graphs Both accelerations and the percent difference. Questions Summary

  7. EXIT A student records the motion of a spinning object and obtains an w vs. time graph. The computer gives a fit: w(t)= At+ B where A = 8.50 and B = 1.00 What is the experimental value of the angular acceleration a?

More Related