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Fun with Magnets Test - 6

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Fun with Magnets Test - 6
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following is not a magnetic substance?
    Solution
    The substances which are not attracted by a magnet are called non-magnetic substances. 
    For example, wood, paper, brass,water, copper, glass, gold, silver, etc., are non-magnetic substances.
  • Question 2
    1 / -0
    Where is the  attractive property of a magnet is maximum ?
    Solution
    Since magnetic lines of force are crowded at north and south poles, magnetic strength is maximum at north and south poles.
  • Question 3
    1 / -0
    The special property of magnetic substance is :
    Solution
    Magnetic substance gets attracted by magnet towards them, but they cant be repelled. They can be magnetized by magnets.
    e.g.: nickel, lodestone, etc.

    So the answer is Option B.
  • Question 4
    1 / -0

    Directions For Questions

    P                             Q                                         R
    MagnetsMagnetic SubstancesNon Magnetic Substances

    ...view full instructions

    An object is repelled by a magnet. It must be placed in which of the group:
    Solution
    All magnets have two poles i.e., the south pole and the north pole.
    Like poles repel and unlike poles attract each other.
    Hence, if an object is repelled by the magnet it means that the object must be a magnet. 
    Hence, the answer is PP.
  • Question 5
    1 / -0
    Which of the following will NOT be attracted by a magnet?
    Solution

    Metal generally attracts the magnet. But there are some exception to it as well. Metals which are very rarely found out in its original form or alloys do not attracts magnet. Gold, brass, copper are some examples of it. While metals like Iron, Nickel and Cobalt have magnetic property which helps them to attract by a magnet.

    Answer:Answer:

    Hence, option C is the correct answer.  

  • Question 6
    1 / -0

    Directions For Questions

    P                             Q                                         R
    MagnetsMagnetic SubstancesNon Magnetic Substances

    ...view full instructions

    After repeated rubbing with a magnet in the same direction, a piece of substance fails to get magnetised, it should be in the group (s) :
    Solution
    Since the piece of substance fails to get magnetized, it will be considered a non-magnetic substance. Therefore, it should be in group R.

  • Question 7
    1 / -0
    Shaving blades are usually made of steel. They will :
    Solution
    Shaving blades are usually made up of steels. Steel is a magnetic material hence it is having properly that it will be attracted by the magnet either by permanent or by artificial.
    OPTION : A.
  • Question 8
    1 / -0

    Directions For Questions

    P                             Q                                         R
    MagnetsMagnetic SubstancesNon Magnetic Substances

    ...view full instructions

    A ring made up of copper and nickel can be placed in which group?
    Solution
    Some metals like iron, cobalt, nickel, etc. are magnetic materials. i.e, they easily get attracted to the magnet and it can also be magnetized.
    Also, copper is a weak magnetic material. It interacts with magnets in the presence of a strong magnetic field.

    So, rings made up of copper and nickel can be placed in the group of magnetic materials.
    Hence, the answer is B.
  • Question 9
    1 / -0
    The force of attraction of a magnet is maximum at :
    Solution

    The magnetic force of attraction is greater where the field lines are crowded. Since all the magnetic fields lines emerge from the poles so the crowd or concentration or density of field lines is maximum near poles.

  • Question 10
    1 / -0

    Directions For Questions

    P                             Q                                         R
    MagnetsMagnetic SubstancesNon Magnetic Substances

    ...view full instructions

    Articles from which group can be attracted by magnets but cannot attract other objects?
    Solution
    Some metals like iron, cobalt, nickle, etc are the magnetic materials i.e. they easily get attracted by the magnet. But it won't be attracted by other objectives.
    So, from P,Q and R the correct option will be Q. i.e, magnetic substance.
    OPTION : B.
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