Circuits STAAR

Front

What is a circuit?

Back

A circuit is a closed path through which electric current flows. It consists of a power source, conductors, and a load.

Front

What are the two main types of circuits?

Back

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

Front

What is a series circuit?

Back

A series circuit is a circuit in which the components are connected end-to-end, so that the current flows through each component one after the other.

Front

What is a parallel circuit?

Back

A parallel circuit is a circuit in which the components are connected across common points or junctions, allowing current to flow through multiple paths.

Front

What is a conductor?

Back

A conductor is a material that allows electric current to flow through it easily, such as copper or aluminum.

Front

What is an insulator?

Back

An insulator is a material that does not allow electric current to flow through it easily, such as rubber or glass.

Front

What is a load in a circuit?

Back

A load is any device that uses electrical energy to perform work, such as a light bulb or a motor.

Front

What is voltage?

Back

Voltage is the electrical potential difference between two points in a circuit, measured in volts (V). It is what pushes electric current through the circuit.

Front

What is current?

Back

Current is the flow of electric charge in a circuit, measured in amperes (A). It represents how much charge is flowing.

Front

What is resistance?

Back

Resistance is the opposition to the flow of electric current, measured in ohms (Ω). It determines how much current will flow for a given voltage.