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Diagnostic Pre-test
Primary 6 Science: Electrical Systems · Chapter 1 of 6
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Diagnostic: where are you starting from?
Mei Ling slides the switch of her torchlight to OFF and the bulb goes dark. When the torchlight was ON, what job was the switch doing?
It was storing electricity for the bulb.
It was producing the light energy.
It was closing the circuit so the loop was complete and current could flow.
It was increasing the cell's voltage.
Stuck? Finn has a hint
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