Understanding Magnetism

Front

What describes the state of iron with partially aligned magnetic domains?

Back

Slightly magnetized iron.

Front

What does a current-carrying wire create around it?

Back

Magnetic field.

Front

What factors affect the magnetic force on a moving charge?

Back

The velocity of the charge, the magnetic field strength, and the angle between the velocity and the magnetic field.

Front

When a weak and strong magnet repel each other, which magnet exerts the greater repelling force?

Back

The stronger magnet.

Front

What is the force due to the motion of charged particles called?

Back

Magnetic force.

Front

Define magnetism.

Back

Magnetism is a physical phenomenon produced by the motion of electric charge, resulting in attractive and repulsive forces between objects.

Front

What is a magnetic domain?

Back

A magnetic domain is a region within a magnetic material where the magnetic moments of atoms are aligned in the same direction.

Front

What is the difference between ferromagnetic and paramagnetic materials?

Back

Ferromagnetic materials can be permanently magnetized, while paramagnetic materials are only weakly attracted to magnetic fields and do not retain magnetization.

Front

What is the right-hand rule in magnetism?

Back

The right-hand rule is a mnemonic for understanding the direction of magnetic force, current, and magnetic field: if you point your thumb in the direction of current, your fingers curl in the direction of the magnetic field.

Front

What happens to the magnetic field when the current in a wire is increased?

Back

The strength of the magnetic field increases.