NAME______________________ Summer Physics I Packet, Grade 11 Walking a Distance vs. Time Graph Kinematics is the study of motion. In this exercise you will literally demonstrate all aspects of linear motion and then graphically represent what you have demonstrated. The project consists of three parts: Develop a plan of motion. Execute that plan and measure its results. Take those results and create a written deliverable. The Plan Write a “plan” on how you will move. Walk only along a straight-line path. During your walk there must be a least one time where: o you are at rest, o you change directions, o you speed up, o you slow down, and o you walk at a constant rate in both directions. Note for how long you plan to do each motion. Your plan must describe 30 seconds of motion. An example of a plan would be: I am going to not move for the first 6 seconds, then I will walk forward at a constant rate for 6 seconds, I will then walk backwards while speeding-up…. Executing the Plan You need 31 timing markers. Poker chips are recommended but anything that can be used as long as it can be marked, is weighted and can be dropped and not be blown away. Whatever you choose, number your markers from “0” to “31”. Walk your plan in an open space, driveway, sidewalk, or back-yard. Keep time just by counting aloud (1-one thousand, 2 – one thousand, …). Mark where you are at the end of each second by dropping your timing marker in order. Hints: Figure out some way to drop the chip so that it does not move from the spot where it lands. Make all motions last at least 6 seconds or longer so that you can see the pattern when you graph the motion. When you are speeding up you will be tempted to count faster and when you are slowing down you will be tempted to count slower. Don’t. To speed up (or slow down) don’t try to take more (or fewer) steps in a second, just plan on taking larger (or smaller) steps. Make sure you speed up while walking. Don’t just suddenly walk faster, but instead make each step a little bigger than the last so that with each step you are getting faster. Create a data table of marker number (which is the equivalent of time) and the displacement of each chip. o Your point of origin is where the “0” chip is. o All distance measurements are from the point of origin. Note that you must display all measurement data in standard SI format, i.e. in meters. There are approximately 0.31 meters in one linear foot. o Be advised that displacement can be negative. If you move behind your point of origin, these distances must have a negative sign. The Written Deliverable In corporate-speak, a written deliverable is a report. Your deliverable will be typed in a 12-pitch font (Times New Roman, Arial, Calibri) in black ink using 1” margins. You will include the following: A cover page with the title of this project and your name. Your plan of motion. Your data table showing time versus the displacement. A graph showing displacement versus time. You may hand-draw this graph and paste it into your report (or as a separate page insert) or use a graphic and/or spreadsheet program (Excel) to create your graph and then cut and paste it into the report. Please note on the graph each motion element of your plan. Two of these elements should demonstrate curved lines (Why?) though if the motion is not maintained long enough, it may not be that obvious. Describe how each of the different types of motion is represented on the graph. The assignment will comprise one test grade in Term 1.
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