How switches work
Science · Energy · conceptual
Recognise that a switch opens and closes a circuit, controlling whether a lamp lights or a buzzer sounds
What mastery looks like
- 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
Check your understanding
Can How switches work explain what happens inside the wall when they flip a light switch — that it completes or breaks the electrical loop?
Prerequisites
Required first