Education Technology

# Activities

• ##### Subject Area

• Science: Physics: Kinematics

6-8

• ##### Device
• TI-73 Explorer™

TI Connect™

• ##### Accessories

CBL™/CBL 2™
CBR™/CBR 2™
TI Connectivity Cable

• ##### Other Materials
This is Activity 8 from the EXPLORATIONS Book:
Data Collection Activities for the Middle Grades with the TI-73, CBL™, and CBR™

The following materials are required for this activity:
• Meter stick
• 1.5 m long ramp
• 7 toy rolling cars small enough to fit on the board

## Seven Speedy Pieces

#### Activity Overview

In this activity, students will determine the coasting distance of a toy car if it is rolled down from different fixed distances down an inclined plane.

#### Before the Activity

• Install the CBL/CBR Application on the students' graphing calculators using TI Connect™ or TI-GRAPH LINK™, TI Connectivity cable, and the unit-to-unit link cable
• Connect the TI-73 to the CBL 2 and CBR 2
• See the attached PDF file for detailed instructions for this activity
• Print pages 117 - 127 from the attached PDF file for your class
• #### During the Activity

Distribute the pages to your class.

• Position the CBR at the bottom of the ramp to measure the distance the car coasts after leaving the ramp
• Hold and release the car 0.5 m from the starting line on the top of the ramp and record the coast distance
• Repeat for all seven cars
• Repeat the activity releasing the cars 1 m and then 1.5 m from the starting line
• Record the data and create a bar graph
• Understand the relationship between the starting point and the distance traveled
• Analyze the data and identify the car with the greatest coasting distance and relate it to the car design
• #### After the Activity

Students will fill in the Student Data Collection and Analysis Sheet and answer questions in it.

Review student results:

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