Learn About Resistors in Electrical Circuits

When using electricity in circuits, resistance can be created using a resistor.

Here is a resistor symbol for drawing electrical circuit diagrams.

Imagine electricity as a group of speedy cars racing down a road.

Resistance is like the traffic jam on the road that slows down the cars. 

Resistance is the force that makes it harder for electricity to flow through a circuit.

Resistors are like special traffic signs on the roads - they control the flow of the cars (or electricity) by making it go slower and regulate how much electricity flows through.

So when there is a lot of resistance in a circuit, electricity moves slowly, just like cars in a traffic jam. 

When there is less resistance, electricity moves faster, just like cars on a traffic-free road.

Resistance is measured in Ohms.

In this activity, we will test out our knowledge of resistance and resistors.

Let's get started.