bar magnet

Iron filings attractor

A bar magnet is a rectangular piece of magnetized metal with a north pole at one end and a south pole at the other.

It's the classic form used in science classrooms to demonstrate magnetic attraction and repulsion: The bar magnet pulled the iron filings into curved lines revealing the magnetic field.

materials

iron

Element twenty-six

  • steelCarbon-hardened iron alloy
  • alnicoMagnetic metallic composite
  • ferriteMagnetic ceramic compound

neodymium · cobalt · nickel · magnetite · lodestone · rare earth · samarium · iron filings

navigation

compass

Device showing cardinal directions

orientation · mariner's compass · lodestone · wayfinding

physics

poles

Long sticks or extremities

magnetization · dipole · attraction · repulsion · induction · permeability · hysteresis · remanence · saturation · demagnetization

education

science class

Course studying natural phenomena

physics lab · STEM · teaching aid · hands-on learning

polarity

positive

Affirming or certain

alignment · orientation · bipolar · flip

Categories
Opposites
magnetic mechanism

bar magnetelectromagnet

Wire-wound magnetic device

solenoid · induction coil

magnetic properties

bar magnetbismuth

Element eighty-three

copper · wood · plastic · copper bar

Family

bar, magnet, bars, magnetic, magnetism, magnets, magnetize, magnetized, magnetizing

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G