Electric Circuits - SEC 2nt

10 Questions | Total Attempts: 1177

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Electric Circuits - SEC 2nt - Quiz

There are 10 MCQ questions in this quiz. Good luck!


Questions and Answers
  • 1. 
    You are given a light bulb and some wires.What else is needed to form a complete circuit so that the light bulb can light up?
    • A. 

      A switch

    • B. 

      A cell

    • C. 

      A resistor

    • D. 

      A piece of iron

  • 2. 
    If the switch in the following diagram is open, what will happen to the light bulb?
    • A. 

      It will light up

    • B. 

      It will be brighter than normal

    • C. 

      It will be dimmer than normal

    • D. 

      It will not light up

  • 3. 
    Which list contains one conductor and one insulator of electricity?
    • A. 

      Plastic, glass

    • B. 

      Gold, aluminium

    • C. 

      Iron, wood

    • D. 

      Copper, zinc

  • 4. 
    Which of the following is an example of electrical conductor?
    • A. 

      Silver fork

    • B. 

      Eraser

    • C. 

      Plastic ruler

    • D. 

      Rubber band

  • 5. 
    When a switch is closed, it means that
    • A. 

      Electricity cannot flow through the switch

    • B. 

      Electricity can flow through the switch

    • C. 

      The circuit is broken

    • D. 

      The switch is turned off

  • 6. 
    In which of the following situations will light bulb A light up only?
    • A. 

      Close switch a, b and c

    • B. 

      Open switch a, b and c

    • C. 

      Close switch a and b, and open switch c

    • D. 

      Close switch a and c, and open switch b

  • 7. 
    A simple circuit is made up of a cell, a light bulb and some wires. The light bulb lights up normally.What can you do to increase the brightness of the light bulb?
    • A. 

      Add one more cell in series to the circuit

    • B. 

      Add one more light bulb in series to the circuit

    • C. 

      Add a switch in series to the circuit

    • D. 

      Add a resistor in series to the circuit

  • 8. 
    What will happen if we add too many cells to the circuit in Question 7?
    • A. 

      The cells may explode

    • B. 

      The cells will stop working

    • C. 

      The light bulb may burn out

    • D. 

      The light bulb will get too bright to see

  • 9. 
    Which component does the following symbol represent?
    • A. 

      Cell

    • B. 

      Wire

    • C. 

      Switch

    • D. 

      Resistor

  • 10. 
    What does the following symbol represents?
    • A. 

      An open switch

    • B. 

      A closed switch

    • C. 

      A piece of broken wire

    • D. 

      Two cells

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