Activity Overview
Students will use a CBR 2™ motion detector to measure distance and velocity. Students prepare graphs of motion and analyze them. They compare and match graphs of distance versus time and velocity versus time.
Before the Activity
If you are using a TI-84 Plus connect the CBR 2™ Motion Detector using a Unit-to-CBR 2™ cable, the EasyData App will start automatically
If you are using a TI-83 Plus connect the CBR 2™ Motion Detector using Unit-to-Unit Cable and start the EasyData App
Position the Motion Detector on a table facing an area free of objects
See the attached PDF file for detailed instructions for this activity
Print pages 11-13 from the attached PDF file for your class
During the Activity
Distribute the pages to your class
Mark distances of 1-m, 2-m, 3-m and 4-m from the Motion Detector on the floor
Starting with the 1-m position make students walk to different positions at varying speeds
Plot a graph of distance versus time
Examine a randomly generated graph and plan motion required to match it
Explore making velocity versus time graphs and compare them with distance versus time graphs
After the Activity
Students will complete the Student Data Collection and Analysis Worksheet.
Review student results:
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary