Practice # 1 Magnetism

Front

What are materials that permit the flow of electrons called?

Back

Conductors

Front

What is a magnet that quickly loses most of its magnetism after the magnetizing force is removed?

Back

Temporary magnet

Front

What is the term for an accumulation of electric charge on the surface of an object?

Back

Static electricity

Front

What are the magnetic lines of force created by a magnetic field also known as?

Back

Magnetic lines of flux

Front

What is a charged atom called?

Back

Ion

Front

What is the difference between a conductor and an insulator?

Back

Conductors allow the flow of electric current, while insulators resist it.

Front

What is the principle behind how magnets attract or repel each other?

Back

Magnets have north and south poles; like poles repel and opposite poles attract.

Front

What is the role of magnetic fields in electric motors?

Back

Magnetic fields interact with electric currents to produce motion.

Front

What is the relationship between electricity and magnetism known as?

Back

Electromagnetism.

Front

What is the effect of temperature on the magnetism of materials?

Back

Increasing temperature can demagnetize materials by disrupting their magnetic domains.