Today at the start of class, we turned in both our Kinematics Discovery Lab and our guided reading for Chapter 2.1- 2.2. During class, we went over examples of kinematics problems. We altered some of these problems to make them more interesting. Instead of figuring out how long it would take for two cars to meet when car A starts in West Chester and car B starts in Dayton, we determined how long it would take for Stedman on a one-hump, albino camel in West Chester to meet Jacob traveling from Dayton on a two-hump camel. We also altered a problem to include Ms. Foldy trying to catch Ms. Taylor, who had stolen Ms. Foldy’s chicken nuggets. The kinematics problems used the equation X= Xi+ V x ∆t where X is the current position, Xi is the initial position, V is the rate, and ∆t is the duration. We only went through 4 of these examples and then the class started on a pair-check. If the pair-check was not finished before the end of class, it can be turned in tomorrow at the beginning of class. Our homework is to complete the “Kinematics Problems 1” worksheet.
QOD: You are running from a bear. At first, you speed up because you want to get away, but eventually you slow down because you get tired. If you survived this experience and plotted your motion on a graph of position vs. time, would it be appropriate to draw a straight line through your data points?
Answer: it would not be proper to draw a straight line through your points because the motion was not uniform and your measurements wouldn’t be completely accurate. I think you would draw a smooth curve that best fits your data.
No comments:
Post a Comment