How switches work
Recognise that a switch opens and closes a circuit, controlling whether a lamp lights or a buzzer sounds
Teaching approaches
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1 approach
Can your child explain what happens inside the wall when they flip a light switch — that it completes or breaks the electrical loop?
Recognise that a switch opens and closes a circuit, controlling whether a lamp lights or a buzzer sounds
Learning resources
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This concept
Check understanding
- Explain that a closed switch completes the circuit (current flows) and an open switch breaks it (current stops)
- Demonstrate adding a switch to a circuit and using it to control a bulb or buzzer
- Relate the switch concept to everyday switches in the home
“Can your child explain what happens inside the wall when they flip a light switch — that it completes or breaks the electrical loop?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Energy
- Age range
- Ages 8–9
Standards