Magnetic Fields

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Magnet Noun

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[mag-net]

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Magnet

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An object that produces a magnetic field and attracts materials containing iron, cobalt, or nickel.

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Example: This diagram shows two magnets with their opposite poles (North and South) facing each other, causing them to pull together, which is called attraction.

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Magnetic Material Noun

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[mag-net-ik muh-teer-ee-ul]

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Magnetic Material

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A substance, such as iron or steel, that is strongly attracted to a magnet and can be magnetized.

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Example: This image shows iron filings, a type of magnetic material, arranging themselves along the invisible lines of force created by a bar magnet's magnetic field.

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Non-Magnetic Material Noun

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[non-mag-net-ik muh-teer-ee-ul]

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Non-Magnetic Material

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A substance, such as paper or plastic, that is not attracted to a magnet and cannot be magnetized.

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Example: This image displays a tray of non-magnetic materials like wood, plastic, and rubber, which are not attracted to a magnet, contrasting them with magnetic items.

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Natural Magnet Noun

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[nach-er-ul mag-net]

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Natural Magnet

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A magnet, such as lodestone, that occurs naturally in the environment without any human intervention or modification.

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Example: This diagram shows a bar magnet, a type of natural magnet, with its North (N) and South (S) poles creating an invisible magnetic field around it.

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Artificial Magnet Noun

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[ar-tuh-fish-ul mag-net]

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Artificial Magnet

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A magnet created by humans through the process of magnetizing a magnetic material, often using an electric current.

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Example: This diagram shows an electromagnet, a type of artificial magnet, created by passing an electric current through a coil of wire, generating a magnetic field.

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Magnetic Poles Noun

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[mag-net-ik pohls]

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Magnetic Poles

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The specific regions at the ends of a magnet where the external magnetic field is strongest, labeled North and South.

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Example: A bar magnet has two magnetic poles, North (N) and South (S). The lines show the magnetic field, which flows out of the North pole and into the South pole.

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Electromagnetism Noun

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[ih-lek-troh-mag-nuh-tiz-um]

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Electromagnetism

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The branch of physics concerning the study of the fundamental interaction and relationship between electricity and magnetism.

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Example: Wrapping a wire carrying an electric current from a battery around an iron core aligns its magnetic domains, creating a temporary magnet with a north and south pole.

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Electric Current Noun

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[ih-lek-trik kur-unt]

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Electric Current

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The rate of flow of electric charge through a conductor, which is capable of producing a surrounding magnetic field.

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Example: This diagram shows how rotating a wire coil (a conductor) within a magnetic field forces electrons to move, creating an electric current that lights the bulb.

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Electric Circuit Noun

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[ih-lek-trik sur-kit]

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Electric Circuit

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A complete and closed path through which an electric current can flow, typically including a source of electrical energy.

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Example: This diagram shows a simple electric circuit where a battery powers a current through a coiled wire, turning an iron nail into an electromagnet.

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Magnetic Field Noun

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[mag-net-ik feeld]

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Magnetic Field

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A vector field in the space around a magnet or electric current where a magnetic force can be detected.

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Example: This diagram shows a bar magnet's magnetic field, an invisible area of force. The lines show the field's shape and direction, flowing from North to South.