SimulationMade with three.js
Speaker Workshop
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Watch in slow motion how the force on a coil in a magnetic field moves the cone and the air inside a cutaway speaker, then design speakers from a paper cup, a plate or a foam board, measure their sound level and listen to them. Spin a motor that works the same way and sort materials by how a magnet attracts or repels them.
Key conceptsmagnetic effect of current · speaker · electric motor · force on a current in a magnetic field · commutator · magnetic material · ferromagnetic · diamagnetic