Circuits and Electricity

Front

What is the primary function of a wire in an electrical circuit?

Back

A wire serves as a conductor, allowing electric current to flow through the circuit.

Front

In a circuit with multiple lightbulbs, what would happen if one wire is removed?

Back

Removing a critical wire can cause all the lightbulbs to go out, depending on the circuit configuration.

Front

What component is necessary at Position X for a buzzer to sound when a switch is closed?

Back

A power source is necessary to provide the electrical energy needed for the buzzer to sound.

Front

What type of circuit allows multiple paths for current to flow?

Back

Parallel circuits allow multiple paths for current to flow, meaning if one path is interrupted, others can still function.

Front

How can a student design a circuit with a switch that allows one light to stay on and a bell to ring when the switch is opened?

Back

The student should use a parallel circuit configuration to ensure that the light and bell can operate independently of the switch.

Front

What is the difference between series and parallel circuits?

Back

In a series circuit, components are connected end-to-end, so the current flows through each component sequentially. In a parallel circuit, components are connected across common points, allowing multiple paths for current.

Front

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

Back

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

Front

What is Ohm's Law and how is it expressed mathematically?

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). It is expressed as V = I * R.

Tags

NGSS.MS-PS2-3

Front

What is the role of a switch in an electrical circuit?

Back

A switch controls the flow of current in a circuit by opening (breaking the circuit) or closing (completing the circuit) the path.

Front

What is a conductor and what materials are typically used as conductors in circuits?

Back

A conductor is a material that allows electric current to flow easily. Common conductors include copper, aluminum, and gold.