Electricity (Honors)

Front

What is an electrical conductor?

Back

An electrical conductor is a material that allows electric current to flow through it easily. Examples include metals like copper and aluminum.

Front

What is an electrical insulator?

Back

An electrical insulator is a material that resists the flow of electric current. Examples include rubber, glass, and plastic.

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, all components are connected in a single path, so if one fails, the entire circuit stops. In a parallel circuit, components are connected across common points, so if one fails, others can still operate.

Front

What is Ohm's Law?

Back

Ohm's Law states that the current (I) through a conductor between two points is directly proportional to the voltage (V) across the two points and inversely proportional to the resistance (R) of the conductor. It is expressed as V = IR.

Front

What is resistance in an electrical circuit?

Back

Resistance is a measure of the opposition to the flow of electric current in a circuit, measured in ohms (Ω).

Front

What is voltage?

Back

Voltage, also known as electric potential difference, is the measure of the energy per unit charge available to drive electric current through a circuit, measured in volts (V).

Front

What is current?

Back

Current is the flow of electric charge in a circuit, measured in amperes (A).

Front

What happens to the total resistance in a series circuit when more resistors are added?

Back

The total resistance in a series circuit increases as more resistors are added.

Front

What happens to the total resistance in a parallel circuit when more resistors are added?

Back

The total resistance in a parallel circuit decreases as more resistors are added.

Front

What is the role of a battery in a circuit?

Back

A battery provides the voltage needed to push electric current through the circuit.