Activity Overview
In this activity, students will graph the height of a ball versus time after it is dropped from some height. They will then examine one ball bounce and investigate the parameters that effect the shape of the graph. They will also explore the relationship between the height of the ball and the velocity.
Before the Activity
Connect the calculator to the CBR 2™
Install the TI Connect™ software to analyze data on the computer
See the attached PDF file for detailed instructions for this activity
Print pages 39 - 43 from the attached PDF file for your class
During the Activity
Distribute the pages to your class.
Follow the Activity procedures:
Run the Ranger program on the calculator
Release the ball beneath the CBR and begin data collection
Observe the graph of height versus time on the calculator
Trace the graph and record the X extremes and the vertex of the parabolic shape of one bounce
Draw a best fit parabola and write down its equation
Use the values from the parabola and plot the velocity graph
Record the coordinates of 2 points that fall on the line and find the slope and y-intercept of the line
Repeat data collection for subsequent bounce-parabolas
After the Activity
Students will complete the Data Collection table and answer questions listed in it.
Review student results:
As a class, discuss questions that appeared to be more challenging
Re-teach concepts as necessary