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Bar Magnet and Compass Interactive

Bar Magnet and Compass Interactive

Bar Magnet and Compass Interactive

Bar Magnet and Compass Interactive The black rectangle represents a bar magnet. The magnet’s North and South poles are labeled. The other item represents a compass; the red end of the needle is the end that would point towards Earth’s North Magnetic Pole. Notice that the red end of the compass needle points toward the south pole of the magnet. For historical reasons, what we call “Earth’s North Magnetic Pole” is actually the south pole of Earth’s magnetic field! Yikes!

Drag either the compass or the magnet around to explore the magnetic field around the bar magnet. Can you determine the shape of the magnetic field?

This is an early draft version of this activity. We expect to replace it with a better version soon. Some things to be aware of:

  • If you drag either the compass or the magnet off screen and let go, you won’t have any way to get them back. Reload/refresh the web page to start over.
  • The behavior of the compass might be a bit different in the real world when you place it on top of the magnet.

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