1. Charged particles can affect and be affected by
other charged particles through the electric fields they produce.

other particles, but only if they have the opposite charge.

other particles, but only if they have the same charge.

fields of attractive, but not repulsive, force.

2.What is the term for the force experienced by a charged particle in an electromagnetic field?
the Oersted force

the Tesla force

the Gauss force

the Lorentz force

3.Which of the following fields is a "vector field"?

electric only

magnetic only

electric and magnetic

neither electric nor magnetic

4.Which of the following formulas can be used to find the magnitude of the force on a charge moving at an angle θ through a magnetic field?


F = qEθ

F = qvBsinθ

F = macosθ

F = qvBcosθ

5.How do stationary charged particles interact at a distance with their surroundings?

by emitting protons into the surroundings

by creating magnetic force fields

by breaking up into smaller charges

by way of their electric fields

6.An electric field always surrounds ________.

uncharged particles

negatively and positively charged particles

only positively charged particles

only negatively charged particles A



7.When Hans Christian Oersted discovered the connection between electricity and magnetism in 1820, he initially assumed that the magnetic field around a wire radiated evenly along all sides, like light or heat. What is the actual shape of the magnetic field of a wire?

radially oriented but expanding and contracting in strength

rod-shaped, contained entirely within the wire

a spring-like spiral with the wire along its axis

concentric circles centered on the wire



8.Moving a magnet creates electric forces that can ________.

create significant gravitational potential energy

induce electric current in a wire

cancel out the magnetic forces

move uncharged particles


9.How are an electromagnet's magnetic field lines directed?

parallel to the electric field lines

from the magnet's south pole to its north pole

from the magnet's north pole to its south pole

in straight lines radially from the north pole


10.If a charged particle is moving parallel to a magnetic field, it experiences

the maximum force possible

half of the maximum force possible

a force with a direction parallel to the magnetic field

no force