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Time-Distance Relationships . Explore time-distance relationship Write walking instructions or act out walks for a given graph Sketch graphs based on given walking instructions or table data Use an electronic device, motion sensor, and graphing calculator to collect and graph data.
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Time-Distance Relationships Explore time-distance relationship Write walking instructions or act out walks for a given graph Sketch graphs based on given walking instructions or table data Use an electronic device, motion sensor, and graphing calculator to collect and graph data
The time-distance graphs below provide a lot of information about the walks they picture. • Because the lines are straight and increasing means that both walkers are moving away from the motion sensor at a steady rate. • The first walker starts 0.5 meters from the sensor, whereas the second walker starts 1 meter from the sensor. • The first graph pictures a walker moving 4.5-0.5 4 meters in 4-0 =4 seconds or 1 meter per second. • The second walker covers 3-1=2 meters in 4-0=4 seconds or 0.5 meter per second. • In the next investigation you will analyze time-distance graphs and create your own graphs.
Walk the Line Page 172 Materials Needed 4 meter measuring tape or 4 meter sticks per group a CBR A stop watch that show seconds
Walk the Line • Complete step 1 by studying the three graphs presented on page 172. Write out directions for each graph. • Complete steps 2 and 3. Be ready to present your solution to these questions.
Obtain a CBR (motion detector) to use with your graphing calculator to complete Steps 4 and 5. Be ready to discuss the results of your investigation.