Air Ball!
Recommended for grades K–5.

Introduction
Do you ever wonder how the National Basketball Association (NBA) decides how much air should be in the basketballs used during a game? The NBA measures the pressure inside the ball in units of pounds per square inch, or psi. In this activity, you will experiment with the amount of air in a basketball, but you will use the units scientists use to measure pressure called kilopascals, or kPa. We will vary the amount of pressure in the ball, then use Go!Motion to measure how high the ball bounces.
Objectives
In this activity, you will
- Record what happens to the bounce height of a basketball as you vary the pressure of the air inside it.
- Graph your data.
- Draw conclusions based on your data.
Sensors and Equipment
This experiment requires each of the following Vernier sensors and equipment (unless otherwise noted):
Additional Requirements
You may also need an interface and software for data collection. What do I need for data collection?
Download Experiment Preview
The student-version preview includes:
- Step-by-step instructions for computer-based data collection
- List of materials and equipment
Note: The experiment preview of the computer edition does not include essential teacher information, safety tips, or sample data. Instructions for Logger Pro and other software (such as LabQuest App or TI handheld software, where available) are on the CD that accompanies the book. We strongly recommend that you purchase the book before performing experiments.
Standards Correlations
See all standards correlations for Elementary Science with Vernier »


