Ch 10. Review Magnetic Fields and Forces review

Front

What is the direction of the force on a wire carrying current upward in a magnetic field directed to the right?

Back

Into the page.

Front

What happens when two magnets are brought close together with like poles facing each other?

Back

They will repel each other.

Front

Using the right hand grip rule, what does the direction of your thumb represent?

Back

The direction of the current.

Front

What is the best evidence that Earth has a magnetic field?

Back

A compass needle lines up with it.

Front

What is the interaction between two magnets with opposite poles?

Back

They attract each other.

Front

What is the magnetic field direction around a current-carrying wire?

Back

It forms concentric circles around the wire.

Front

What is the formula for calculating the magnetic force on a charged particle moving in a magnetic field?

Back

F = q(v × B), where F is the force, q is the charge, v is the velocity, and B is the magnetic field.

Front

What is the right-hand rule used for in magnetism?

Back

To determine the direction of the magnetic force, current, or 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.

Front

What is the effect of a magnetic field on a moving charged particle?

Back

It exerts a force perpendicular to both the velocity of the particle and the magnetic field.