Select the SI unit for current.

Electrical potential energy comes from the difference in ___ between two places.

Electric charge always moves from an area of lower concentration to an area of higher concentration.

Charge can only move from one place to another if there is a difference in __ (select all that apply).

A measure of electrical potential energy is known as ___.

A 6 volt battery has more potential energy than a 1.5 volt battery.

The biggest difference between AC and DC is ___.

Which of the following is not a DC source?

Opposition to the flow of charge is. known as ___.

Materials that have great resistance to the flow of charge are known as ___.

Which factors affect resistance (select all that apply)?

Which measurements are related by Ohm's law (select all that apply)?

According to Ohm's law, greater voltage results in ___ current.

According to Ohm's law, greater ___ reduces current.

The unit for resistance is ___.

How much current will flow through a 2 ohm wire when it is connected to a 6 V battery?

What is the voltage necessary to push 2 amps of current through a 4 ohm wire?

A ___ circuit has only one path for current.

A ___ circuit has more than one path for current.

One of the problems with a series circuit is that if one part goes down the whole circuit stops working.

identify the basic parts of a circuit (select all that apply).

A circuit cannot work if it does not allow current to get back to the electricity source.

identify the type of circuit pictured.

With what type of circuit should your house be wired?