Home Learning Quiz - Magnetism

7 Questions | Total Attempts: 356

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Home Learning Quiz - Magnetism - Quiz

Please key-in your FULL NAME and CLASS before you start the quiz. (e. G. Hong Kai Cong 4G2)


Questions and Answers
  • 1. 
    A small bar magnet is placed in the region of a magnetic field as shown. If allowed to move freely, the magnet will 
    • A. 

      Move to the left

    • B. 

      Move to the right

    • C. 

      Turn clockwise

    • D. 

      Turn anticlockwise

  • 2. 
    It can be deduced that a piece of metal is already a magnet if
    • A. 

      Copper wire is attracted to it

    • B. 

      Both ends of a compass needle are attracted to it

    • C. 

      A magnet is attracted to it

    • D. 

      One end of a compass needle is repelled by it

  • 3. 
    Which of these statements about magnetic induction is correct?
    • A. 

      Induced magnetism is always permanent.

    • B. 

      Magnetic induction explains why unmagnetised material may be attracted by a magnet.

    • C. 

      The material must be in contact with the magnet to be induced.

    • D. 

      Magnetism can be induced in any material.

  • 4. 
    The diagram shows a magnet being used to pick up a steel needle. The north pole of the magnet is close to the centre Y of the needle. What is the polarity induced in the needle at X? (Write your answer as North or South).
  • 5. 
    A metal bar PQ hung by a thin thread always comes to rest with end P pointing North. Another bar XY of the same metal settles in no definite direction. What happens if the two bars are brought near one another?
    • A. 

      End P repels X but attracts end Y.

    • B. 

      End P neither attracts nor repels end X.

    • C. 

      End P attracts end X but end Q repels end Y.

    • D. 

      End P and end Q both attract end X.

  • 6. 
    Which of the following is the best way to demagnetise a magnetised steel needle?
    • A. 

      Break it into two pieces.

    • B. 

      Leave it next to another strong magnet.

    • C. 

      Leave it inside a solenoid carrying direct current.

    • D. 

      Slowly pull it out of a solenoid carrying alternating current.

  • 7. 
    Which of the following could be used for the needle of a plotting compass?
    • A. 

      Aluminium

    • B. 

      Copper

    • C. 

      Iron

    • D. 

      Steel