About this Simulation

This interactive simulation models the magnetic field generated by bar magnets and explores how compass needles respond to these fields. Learners can manipulate magnet positions and orientations to observe dipole interactions, visualise field patterns, and investigate Earth's magnetic influence on compass behaviour in real-time.

Learning objectives: Understand how magnetic dipoles create and interact with magnetic fields | Predict compass needle alignment based on multiple magnetic sources | Investigate the relationship between magnet distance, orientation and field strength



Title and author:

Ejs Open Source 2 Bar Magnets and Compass Model java applet
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author image author image author image author image author image lookang (weelookang@gmail.com) , Fu-Kwun Hwang, Wolfgang Chrisitan, Francisco Esquembre; Fu-Kwun Hwang; Wolfgang Chrisitan; Francisco Esquembre; Anne Cox; tina