Key learning points

1. Switches play an important role in our lives because they allow us to control the flow of electricity to appliances.
2. Switches can turn a circuit off by making a gap so electricity cannot flow.
3. Traditional switches work by making a pair of conductors touch each other or separate from each other.
4. Engineers have created innovative switches which are sensitive to human touch.
5. Switches for simple circuits can be created from a range of everyday conductors and insulators.

Keywords

• Switch - A switch is part of an electrical circuit than can stop or allow electricity to flow.

• Control - To control something is to manage or determine how it behaves or what it does.

• Appliance - An appliance is a device or piece of equipment designed to perform a specific task.

• Circuit - An electrical circuit is a closed loop or path that electricity can flow through to make something work.

• Complete - A complete electrical circuit is made when all components are connected together correctly and there are no gaps in the circuit.

Common misconception