Part#1: With a partner, try walking in a circle at two different speeds with the same radius. Feel the force needed to hold the rope. Question 1: What is the general pattern you see? Choose one: As speed (decreases/increases), the force (increases/decreases). Part#2: With a partner, try walking in circles with two different radii. Make sure to keep your speed the same! Feel the force needed to hold the rope. Question 2: What is the general pattern you see? Choose one: As radius (decreases/increases), the force (increases/decreases). 2- Use EXCEL to draw the graphs for data given (no need to change the units) in Tables 1 and 2 for "Walking in a circle\" experiment and nd the "Best Fit line" for each, analyze the relation between variables (Force, Radius, Mass), compare with your answers for Questions 1 and 2. (You can access to EXCEL for free through your college "OFFICE 365\" account. Read Excel Basics to know how to use EXCEL) Table 1: \"Circle Walking Data\" Model for Force (verticaI)-Speed (horizontal) graph speed(m/S) Force(|bs) Table 2: \"Circle Walking Data\" Model for Force (vertical)-Radius (horizontal) graph Radius(m) Force(|bs) - - - 0.3 o In each graph, Interpret and identify \"Circle Walking Data" Model (linear or proportional, ...) and wrap up them to achieve a mathematical model for \"Circle Walking\" More Practice Modeling Walking in Circles M How is the force you hold the rope with related to the speed that you walk in a circle? More Practice Modeling - Walking in Circles 0 With a partner, try walking in a circle at two different speeds with the same radius 0 Feel the force needed to hold the rope. 1. What is the general pattern you see? 2. As speed (decreases/increases), the force (increases/decreases). Activity Handout - Modeling the force and speed . Use EXCLE to find "Circle Walking Data" Models for Force-Speed graph Speed (m/s) Force (Ibs) 1.25 9 2 21 2.25 27 5 1.5 12Excel Basics EXCEL Creating a Graph time (min) distance (miles) . Arrange the desired x and y data columns so they are next to each other, with x 5 0.42 on the left easy way to do this is t 0.7 data into two new columns. 16 1.4 21 1.76 Click to add text 30 2.5 time (min) distance [miles) 0.42 . Select both of the columns by clicking and 0.71 13 1.17 dragging the mouse over them. 16 14 21 176 20 251 . Go to the "Insert" tab at the top of page and select "chart," and then ote "scatter." Choose the option that has no lines connecting the data points. Santer Excel File Edit View Desert Format Tools Chart Winch Picture Shop E . 20 . F . G Marved Barto BI Chart. $ % , 2 Hyporink Fornat . A graph should appear. Adding a Best-Fit Curve . Right click on one of the data points; a menu should appear. . Select "add trend line" from the menu. .....Choose.the.type. of mathematical function.you. would like. to fit.to. your data... Check "display equation on chart" as well. . A trend line and corresponding equation should appear on the graph.More Modeling! - with Circles! AM How is the force you hold the rope with related to the radius that you walk in a circle? More Modeling! - with Circles! 0 With a partner, try walking in circles with two different radii 0 Make sure to keep your speed the same! 0 Feel the force needed to hold the rope. 1. What is the general pattern you see? 2. As radius (decreases/increases), the force (increases/decreases). Activity Handout - Modeling the force and radius Use EXCLE to find "Circle Walking Data" Models for Force-Radius graph Radius (m) Force (Ibs) 1.32 7 9 0.5 19 1.5 6 0.3 31The mode!!!! Proportional to the Square y = Ax2 or y x x2 Means "proportional to"