Compass & Magnetic North

Vos choix de confidentialité

KiwiBee utilise des cookies facultatifs Google Analytics, Google Ads et Meta Pixel pour comprendre les visiteurs adultes, mesurer les inscriptions finalisées et améliorer ses campagnes. Les cookies essentiels restent toujours actifs. Le pixel publicitaire ChatGPT d’OpenAI mesure aussi les pages vues et les demandes envoyées après consentement publicitaire, et peut utiliser des coordonnées hachées pour la mise en correspondance. Politique de confidentialité

À propos de cette simulation

Students drag the compass or the bar magnet across the table, drag the white handle to turn the magnet and click it to flip its poles. The needle swings toward the sum of Earth's field and the magnet's field. Sliders set Earth field strength and magnet strength, and toggles show field lines, field arrows and Earth's field. Readouts give needle heading, deviation from true north, total field and the magnet's part. It shows how a compass works and why magnets can fool it.

Ce que les élèves peuvent explorer

Bring the magnet close to the compass and watch the needle leave north.
Flip the magnet by clicking it and see the needle turn to the opposite side.
Drag the white handle to rotate the magnet and watch the field lines turn.
Move the magnet far away until the needle settles back to Needle heading near 0 degrees.
Turn Earth's field on and off to see what the needle does without it.
Raise Magnet strength and compare the Off true north readout at the same distance.

Objectifs d'apprentissage

1Explain that a compass needle lines up with the strongest magnetic field nearby.
2Describe how unlike poles attract and like poles repel using the needle and magnet.
3Predict how distance affects the pull of a magnet on a compass.
4Interpret field lines and arrows as showing the field direction.

Questions fréquentes des enseignants

Is it free?

Yes. Compass and Magnetic North is free and needs no sign-up. It runs in any modern browser, including interactive whiteboards, tablets and phones, so you can open it straight from a lesson link.

Why does a compass needle point north?

The needle is a small magnet. It lines up with Earth's magnetic field, which points toward magnetic north, so the needle swings that way when nothing stronger is nearby.

Why can a magnet confuse a compass?

A nearby bar magnet can have a far stronger field than Earth's. The needle then points along the combined field, so it gets pulled away from north.

How do I use it?

Drag the compass or magnet, turn the magnet with the white handle, and click the magnet to flip its poles. Use the sliders and toggles to change the fields.

Intégrer cette simulation

Placez-la dans votre ENT, votre blog ou le site de la classe — gratuitement.

<iframe src="https://kiwibee.io/fr/simulations/compass-magnetic-north-3d-simulation/embed" title="Compass &amp; Magnetic North | KiwiBee" loading="lazy" allowfullscreen style="width:100%;height:min(70vh,620px);min-height:420px;border:0;border-radius:16px"></iframe>

Continuer à explorer

A 3D bar magnet is surrounded by iron filings, compass needles and looping field lines. Students change the magnet strength, flip its poles and see the field leave the north pole and return to the south pole.

—

Explore an adult male reference body in 3D. Reveal 14 anatomical systems, search thousands of named structures, isolate organs, and pull 2,209 modeled pieces apart to see how the body is organized.

—

Explore the head and neck in 3D: 643 source meshes across 14 layers, 47 facial and masticatory muscles, and 77 drawn nerves, vessels and glands the source scan omits. Open any tooth onto its own pulp canal, and follow the seven stages of tooth development.

—