Why do magnets attract iron?
Show answer & explanation
Answer: Magnets align iron's domains
Magnets align iron's domains ✓ — Correct! Iron contains millions of tiny magnetic regions called domains. Normally they point randomly and cancel out. When a magnet comes near, it aligns these domains in the same direction, temporarily magnetizing the iron. The aligned domains create magnetic poles that attract to the magnet. Remove the magnet, and the domains may stay aligned (making iron magnetic) or randomize again!
Static electricity pulls them — Wrong. Magnetism and static electricity are different forces. Magnets work through magnetic fields that align the magnetic domains in iron, not through electrical charge.
Gravity is stronger in metals — Wrong. Gravity affects all matter equally and is far weaker than magnetism. Magnets attract iron through magnetic force by aligning iron's internal magnetic domains.
More Physics in Daily Life questions
- In a warm office that already reads 26 C, which change can make people feel cooler without lowering the thermostat?
- Why might 26 C feel acceptable in a breezy naturally ventilated summer building but too warm in a sealed winter office?
- On a warm humid day, why can the same 27 C room feel much worse once you start sweating?
- Why can moving air make a 27 C room feel cooler without changing the thermometer?
- Which hidden factor can make a desk beside a cold window feel chilly even when the thermostat across the room still reads 22 C?
- In the same 22 C room, why might someone who just climbed stairs feel warm while someone sitting in a T-shirt feels chilly?