Electric Circuits Review

Front

What is an electric circuit?

Back

An electric circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and a load (like a light bulb).

Front

What are the two main types of circuits?

Back

The two main types of circuits are series circuits and parallel circuits.

Front

In a series circuit, how does the current behave?

Back

In a series circuit, the current is the same through all components, and if one component fails, the entire circuit is interrupted.

Front

What is a parallel circuit?

Back

A parallel circuit is a circuit where components are connected across common points or junctions, allowing multiple paths for current to flow.

Front

What happens to the brightness of bulbs in a series circuit when more bulbs are added?

Back

The brightness of bulbs in a series circuit decreases as more bulbs are added because the total resistance increases, reducing the current.

Front

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

Back

A switch controls the flow of current in a circuit by opening (turning off) or closing (turning on) the circuit.

Front

What is the function of a battery in a circuit?

Back

A battery provides the electrical energy needed to drive the current through the circuit.

Front

What is an insulator?

Back

An insulator is a material that does not allow electric current to flow through it easily, used to prevent unwanted flow of electricity.

Front

What is a complete circuit?

Back

A complete circuit is a closed loop that allows current to flow uninterrupted from the power source, through the load, and back to the power source.

Front

What effect does removing a wire have in a circuit?

Back

Removing a wire can break the circuit, stopping the flow of current and causing connected devices (like bulbs) to turn off.