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Mapping a Magnetic Field

Experiment #22 from Exploring Physical Science

Education Level
Middle School


The region around a magnet where magnetic force acts is called a magnetic field. In this experiment, you will map the magnetic field at one-centimeter intervals along a bar magnet.


  • Measure and graph magnetic field strength at points along a bar magnet.
  • Analyze data.
  • Make conclusions about the magnetic field at various points on a bar magnet.

Sensors and Equipment

This experiment features the following sensors and equipment. Additional equipment may be required.

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This experiment is #22 of Exploring Physical Science. The experiment in the book includes student instructions as well as instructor information for set up, helpful hints, and sample graphs and data.

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