🧲 Magnetism
Learn magnetic poles, fields, everyday magnets, and electromagnetism
🧲 Magnetic Poles
N 🔴 ←→ 🔵 S
Every magnet has a North (N) pole and a South (S) pole. Opposite poles ATTRACT — they pull together. Like poles REPEL — they push apart!
Earth itself is a giant magnet — that is how compasses work!
🔗 Magnetic vs Non-Magnetic
⚡ Electromagnetism
When electricity flows through a wire, it creates a magnetic field! This is called electromagnetism. Coiling the wire around a metal core makes the effect much stronger — creating an ELECTROMAGNET.
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Cranes
Lift scrap metal at junkyards
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Speakers
Vibrate to create sound
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Maglev Trains
Float above the track!