Basics of Electricity

REVIEW 2

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1. Place a "C" on the line next to each item listed below that is a good conductor of electricity.
  • Copper
  • Aluminium
  • Cloth
  • Rubber
  • Plastic
  • Mica Silver
2. Tick the boxes next to a reason why a conductor is covered with insulating material.
  • To prevent someone from touching a bare conductor and receiving a severe shock.
  • To prevent electrons electrically leaking from the conductor and losing current flow.
  • To prevent bare conductors from touching each other and causing a short circuit.


3. Is the electrical diagram shown below a complete circuit?
Yes    No
4. Tick the basic elements that make up a complete electrical circuit.
  • An electrical source.
  • A utilisation device, such as a light bulb.
  • An insulator to keep the elements from touching.
  • A conductor through which current flows.
5. When all components in the circuit are in one continuous path, the circuit is called a
  • series circuit.
  • parallel circuit.
  • series-parallel circuit.
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