Individual Activities

The Inverse-Cube Law for Magnetism

By: Dr. Sten Odenwald (Astronomer)

Grades 6-9

Students will use a Soda Bottle Magnetometer to study how the force of magnetism changes with distance.

Gravity follows an 'inverse-square' law.

Students will discover that magnetism follows an 'inverse-cube' law of decrease with distance.

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