5AL During Lab 1 Activity W22v3

W22 UCLA Physics 5A Lab 1 (Remote) Assignment Name: (complete sentences NOT required & graphs ARE required) Lab Section: 1 1. Scientific Question and Prediction: a. Write one qualitative question and one quantitative question that you will try to answer today by measuring position vs. time from a video recording of your TA walking across the room. b. Write a prediction for each of your questions and describe the reasoning behind the prediction. 2. Experimental Setup: With your scientific question and knowledge of physics ideas in mind, consider various position vs. time graphs and what you’d see in a video recording corresponding to them. For example, if somebody were to walk from right (which we choose to be the direction corresponding to positive position) to left at a constant speed for the entire time they were in the field of view of the camera, then the graph should look like the figure to the right. Draw graphs for the motions described below. a. Somebody walks from right to left starting at zero speed and then increases speed at a constant rate until they’re outside the field of view of the camera b. Somebody walks from right to left starting at some nonzero speed and then decreases speed at a constant rate until stopping in the field of view of the camera. I believe the TA will walk with a relatively constant velocity, though at times getting slightly slower, but the general graph of displacement vs time will be a mostly straight line. This is because he has walked without intentionally stopping at any point. I predict the TA’s walking time to be roughly 3m/s, solely from approximating after watching the video clip. Makayla Santos C- 9 QUALITATIVE QUESTION : If the TA walks with constant velocity , will , the graph of displacement vs. time depict a straight line ? QUANTITATIVE QUESTION : What will the velocity of the TA 's walking time be from start to end ? ✗ Lt ) xct i i §^ 1.5 - §^ 1.5 - § - § - w l - w l - - - É as - ¥ 5 as - - - l ' , I ' y l 1 , ' ly ' ' g l ' G ' ly t ' ' , I ' y l 1 , ' ly ' ' g l ' G ' ly t Time ( seconds ) Time ( seconds )