Magnetism

Science

An electric current that repeatedly reverses its direction of flow

Alternating current

An electric current that repeatedly reverses its direction of flow. Alternating current is a type of electricity where the flow of electric charge changes direction periodically.

Electric current that flows only in one direction

Direct current

Electric current that flows only in one direction. Direct current. Direct current DC is a type of electrical flow where the electric charge moves in a single, constant direction.

A device that turns electrical energy into movement, or mechanical energy

Electric motor

A device that turns electrical energy into movement, or mechanical energy. Electric motor. An electric motor converts electricity into motion to power various machines and devices.

A temporary magnet made of wire coiled around an iron core

Electromagnet

A temporary magnet made of wire coiled around an iron core. Electromagnet. An electromagnet is a magnet that can be turned on and off with electricity.

The process of generating a current by moving a conductor through a magnetic field

Electromagnetic induction

The process of generating a current by moving a conductor through a magnetic field. Electromagnetic induction. Electromagnetic induction is the creation of electric current in a wire when it moves through a magnetic field.

A device that uses a magnet to turn mechanical energy into electrical energy

Generator

A device that uses a magnet to turn mechanical energy into electrical energy. Generator. A generator is a machine that changes movement into electricity.

An object that attracts iron and some other metals

Magnet

An object that attracts iron and some other metals. Magnet. A magnet is a material or object that produces a magnetic field, which pulls certain metals towards it.

The part of a magnet where the magnetic force is strongest

Magnetic pole

The part of a magnet where the magnetic force is strongest magnetic pole. A magnetic pole is the point on a magnet where the magnetic force is most concentrated and interacts with other magnets.

The properties and interactions of magnets

Magnetism

The properties and interactions of magnets. Magnetism. Magnetism is the force that causes certain materials, like iron, to attract or repel each other due to the movement of electric charges.