Electric and Magnetic Fields MS-PS2-5

Electric charge

A measure of the net positive or negative particles in an object. Electric charge. Electric charge is what causes objects to attract or repel each other due to the presence of positive or negative particles.

Electromagnet

A temporary magnet made of wire coiled around an iron core. Electromagnet. An electromagnet is a type of magnet that only works when electricity is flowing through its wires.

Force

The push or pull exerted on an object. Force. In simple terms, force is what makes an object start moving, stop moving, or change direction.

Generator

A device that uses a magnet to turn mechanical energy into electrical energy. Generator. A generator converts motion into electricity using magnets and coils of wire.

Magnetic field

The area around a magnet where its magnetic force acts is called a magnetic field. A magnetic field is an invisible space around a magnet where it can push or pull on certain metals or other magnets.