fbpx

Cart

Topic – All About Electrical Circuits

How to share this Lesson/Activity with your Google Classroom:

  1. To share this lesson/activity with Google Classroom, click "Continue with Google" to get started.
  2. After logging in, click "Add to Google Classroom" to assign this lesson/activity to your students.

Read the Following Selection

Read about electrical circuits, or click on the play button below to listen aloud.

All About Electrical Circuits

What Is a Circuit?

A circuit is the path that electricity travels along. Here are the parts of a simple circuit:

Part

What It Does

Example

Power source

provides electricity

battery

Conductor

carries the electrical current

metal wire

Load

uses electricity to do something useful

motor

The purpose of a circuit is to provide electricity to the load. If there is a gap anywhere in the circuit, the load will not work. The electric current will not be able to flow through the load. The load in the diagram is a light bulb. If there is a gap in the circuit, the light bulb will not light.

In the simple circuit, the electric current flows from the battery. The current flows through the light bulb, and back into the battery. The ends of the two wires are connected to the battery and to the light bulb. There are no gaps in the circuit, so the circuit is complete.The purpose of a circuit is to provide electricity to the load. If there is a gap anywhere in the circuit, the load will not work. The electric current will not be able to flow through the load. The load in the diagram is a light bulb. If there is a gap in the circuit, the light bulb will not light.

If there is a gap in a circuit, the electric current will not be able to flow through the circuit.

What Is a Series Circuit?

A series circuit connects several loads. There is only one path for the electric
current to flow along.

What Is a Parallel Circuit?

A parallel circuit provides more than one path for the electric current to flow on.
Use your finger to trace these paths on the diagram:

Path 1: A → B → E → F

Path 2: A → B → C → D → E → F

In a parallel circuit, the electric current flows through all the possible paths. This happens only if each path is complete. In the circuit above, some of the current follows Path 1 and some follows Path 2. Both light bulbs light up.


Now, show what you know!

Complete some questions about the reading selection by clicking “Begin Questions” below.