Electricity and Magnetism

What is a electric field

• the space that surrounds any charged object

• a vector quantity having magnitude and direction.

• has a magnitude at any point that is the force per unit charge

• All of the above

What are field lines?

• show the intensity of an electrical field

• show the direction of an electrical field—away from
  positive and toward negative

• are used to visualize an electrical field

• All the above

______ are materials that allow charged
particles to pass through them easily

Electrical resistance is ?

• causes the continuous flow of electrons through a circuit

• describes how well a circuit component resists the
  passage of electrical current

• states the relationship among current, voltage,
  and resistance

• Is the amount of current in a circuit is directly proportional to
  the potential difference (voltage) and inversely with the
  resistance of the circuit

Ohms law states.....

• Energy cannot be created or destroyed

• the relationship among current, voltage,
  and resistance

• Every action has equal or opposite reaction

• What goes up must come down

what is Electrical power

• The energy needed to make energy

• the rate at which electrical energy is converted into
  another form

• equal to the product of current and voltage

• The energy needed to move

What is an electric circuit?

• Is a path where protons can flow

• is any closed path along which
  electrons can flow

• is a open path in which electron cannot flow

• All of the above

True or false: a parallel circuit is when branched pathway is formed for the flow of electrons
through a circuit, connected to the terminals of a battery,
generator, or wall socket

• True

• False

True or False: a series circuit is when a single-pathway circuit is formed for electron flow
between the terminals of the battery, generator, or wall
socket

• True

• False

What is a magnetic field?

• the area around a magnet in which the effect of magnetism is felt

• is in the space around a magnet

• is produced by moving electrical charges

• All of the above