Starter quiz
- In an electrical circuit, which of these images would be called a cell?
Why won’t this circuit work?- one of the wires is not connected to the bulb
- both wires are connected to the bulb holder and not the bulb
- there is no cell ✓
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- A ______ electrical circuit is made when all components are connected together correctly.
- 'complete' ✓
- Which of these images shows a buzzer?
- In a circuit, a cell, battery, wires and bulb are called...
- 'components' ✓
- Which of these diagrams shows a complete circuit?
Exit quiz
Which of these careers would check if circuits have been built incorrectly and also check for improper wiring?- mechanic
- scientist
- electrician ✓
- plumber
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- Which diagram shows a correctly connected cell?
- A circuit will not work if it is not part of a complete loop with a ______ source.
- 'power' ✓
- Which of these rules should we follow when using electricity and electrical appliances?
- Don’t use electrical appliances in bathrooms. ✓
- Leave plug sockets on when not in use.
- Keep electrical cables bundled up in a big ball.
- Make sure your hands are dry if handling electrical appliances. ✓
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- To solve problems with electrical circuits, which of those do scientists do?
- test whether the components are connected correctly ✓
- test whether the components work ✓
- test whether an electrician has made the circuit
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- Which diagram shows a buzzer correctly connected to the circuit?
Worksheet
Presentation
Video
Lesson Details
Key learning points
- A circuit will not work if it is not part of a complete loop with a battery.
- Buzzers only work if they are connected in the correct direction.
- To solve problems with circuits, scientists test whether they are connected correctly and whether the components work.
- Electricians check if circuits have been built incorrectly and with improper wiring.
- When we use electricity and electrical appliances, we need to follow rules to stay safe.
Common misconception
Misconceptions associated with incomplete circuits: one wire to battery; connections to the same end of the battery; wires the wrong way round; not connecting clips to metal.
Children will be taught how to troubleshoot circuits which are not working to address these misconceptions.
Keywords
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 breaks in the circuit.
Incomplete - An incomplete electrical circuit is made when the components are not connected together correctly or there are breaks in the circuit.
Connectors - Connectors are the places on components where the wires make contact to join it to the rest of the circuit.
Electrician - An electrician is an expert in electrical circuits and electricity.