Q.1
With which group of items could you build a complete circuit?
  • Crocodile leads, bulbs, switch, buzzer
  • Bulbs, crocodile leads, cell
  • Cell, switch, buzzer, crocodile leads
  • Wires, bulb, cell
Q.2
Why are electrical wires covered with plastic or rubber?
  • Plastic and rubber are comfortable materials to touch
  • Smooth materials keep wires from getting tangled
  • Plastic and rubber are good electrical insulators
  • Plastic and rubber can be made in different colors so people can tell different leads apart
Q.3
Why might a circuit fail to work?
  • It might have a dead battery
  • It might have two leads connected to the positive pole of the battery and none connected to the negative
  • It might have a break in the circuit
  • All of the above
Q.4
Which of these materials would be a good electrical conductor?
  • Copper
  • Glass
  • Silver
  • Iron
Q.5
What is an electrical circuit?
  • A collection of electrical equipment
  • A path around which electrical current flows
  • A series of conductors and insulators
  • A light bulb and battery
Q.6
What will a circuit with an open switch do?
  • It will not allow electricity to pass through
  • It will allow electricity to pass through
  • It will resist electricity
  • It will make a good electrical insulator
Q.7
What symbol is used in a circuit diagram to represent a bulb?
  • A circle
  • Two parallel lines: one short and one long
  • An X inside a circle
  • The letter M inside a circle
Q.8
A material which allows electrical current to pass through it is called what?
  • An insulator
  • A cell
  • A connection
  • A conductor
Q.9
Besides cells, or batteries, what is another source of electrical power?
  • Lightbulbs
  • Motors
  • Petrol
  • Electricity mains
Q.10
You have made a simple circuit with one bulb. If you wanted to add an extra bulb without the first bulb dimming, what would you need to design?
  • A series circuit
  • A parallel circuit
  • A complex circuit
  • An incomplete circuit
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