Education Technology

# Activities

• ##### Subject Area

• Science: Physical Science: Newton's Laws
• Science: Physics: Dynamics

6-8

60 Minutes

• ##### Device
• TI-83 Plus Family
• TI-84 Plus
• TI-84 Plus Silver Edition

TI Connect™

• ##### Accessories

CBR™/CBR 2™
TI Connectivity Cable

• ##### Other Materials
This is Activity 8 from the EXPLORATIONS Book: Math and Science in Motion: Activities for Middle School.

The following materials are required for this activity:
• A variety of balls

## Bouncing Ball

#### Activity Overview

In this activity, students' will create a Height-Time plot for a bouncing ball. They will examine how the ball's height changes mathematically from one bounce to the next.

#### Before the Activity

• Connect the CBR™ to the calculator using the link cable
• Run the Ranger program on the calculator
• See the attached PDF file for detailed instructions for this activity
• Print pages 33 - 37 from the attached PDF file for your class
• #### During the Activity

Distribute the pages to your class.

• Position the CBR at shoulder-height and hold the ball 0.5 meters below it
• Release the ball and observe the height versus time graph on the calculator screen
• Record four complete bounce heights
• Calculate bounce ratio as a percent
• Compare rebound percent for different starting heights
• Repeat the activity with other types of balls
• #### After the Activity

Students' will collect data and analyze the results.

Review student results

• As a class, discuss questions that appeared to be more challenging
• Re-teach concepts as necessary