Open and closed circuits
Integrated Science · Grade 7 · about 40 minutes
A closed circuit is a complete loop; current can flow. An open circuit has a gap; the bulb is dark. The switch is the designed gap.
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- 6 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
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