WATCH THE VIDEO TO LEARN MORE ABOUT ELECTRICAL CIRCUITS!

 

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TAKE THIS QUIZ TO PRACTICE WHAT YOU HAVE LEARNT.

SCORE AS WELL AS YOU CAN TO GET CLOSER TO THE MOON!


RECAP THE CONCEPTS

  • Electricity is able to flow through wires in a closed circuit.


  • Electricity cannot flow through an opened circuit. This happens when there is a gap in the circuit (e.g. if the bulb is fused or the switch is open).


  • All metals are electrical conductors, whereas most non-metals (e.g. glass, rubber) are electrical insulators.

 


Bulbs arranged in series

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  • When additional bulbs are added in series, the brightness of each bulb decreases.




  • If 1 bulb fuses, the other bulbs will not light up.




  • The bulbs cannot be controlled independently.

 


Bulbs arranged in parallel (usually better than bulbs arranged in series)

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  • When additional bulbs are added in parallel, the brightness of each bulb remains the same.



  • If 1 bulb fuses, the other bulbs will remain lit.



  • The bulbs can be controlled independently using different switches.