Concept 1 of 8Foundation
Watch on YouTubeVideoDiscovery of magnets
Long ago, a shepherd named Magnes (legend) found his iron-tipped staff stuck to a black rock in Asia Minor. That rock was magnetite (Fe₃O₄), a natural magnet — also called lodestone.
Today we can also MAKE magnets by aligning iron/steel domains.
Common magnet shapes: bar, horseshoe, cylindrical, ring, and electromagnet.
Example
A fridge magnet holds your grocery list. A compass needle is a tiny magnet. A scrapyard crane uses electromagnets to lift iron.
💡 Tip:Natural magnets exist in rocks; artificial (man-made) magnets are stronger and shaped for use.
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5 questions to check what you just read.
0 / 5
- Q1.Natural magnet found in rocks is called:
- Q2.Most magnets we use today are:
- Q3.A typical fridge door uses:
- Q4.Compass needle is:
- Q5.Shape of a horseshoe magnet is: