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Launching Ball Bearings

CSEF · 2006 Electricity & Electronics

Michael C. Schmit · Pioneer Junior High School, Upland

Overview

Objectives/Goals My project was to determine whether magnets could increase the momentum of rolling ball bearings in order to launch one uphill and several inches through the air. I believe that having magnets at the beginning and end of the track will maximize the launch distance. Methods/Materials I used 20 magnets, 10 approximately 1/2" in diameter and 1/8" thick, and 10 more approximately 3/4" diameter and 1/8" thick. 16 steel ball bearings were also needed to complete my project. For the track, I used a piece of aluminum angle that is 3/4" on each side and 27-1/2" long. The magnets were mounted to the angle with masking tape. The aluminum angle is mounted on a wood stand that I painted with acrylic paint. Results The evidence proves that if the majority of the magnets are set at the beginning and end of the track, the ball will launch to it's maximum distance. Conclusions/Discussion Magnets have a major effect on increasing the momentum of rolling ball bearings.

Summary statement

My project shows how magnetic forces can interfere with objects in order to create a change.

Help received

My father helped me cut the wooden stand on his saw.

Competition history

  • CSEF 2006 Electricity & Electronics · Entry J0725

Resources

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Source: California Science & Engineering Fair public projects

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