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Fun with Magnets Test - 8

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Fun with Magnets Test - 8
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following is a magnetic material?
    Solution
    Iron is a magnetic material which is attracted by a magnet whereas rubber, copper, plastic and wood are non magnetic materials which are not attracted by a magnet.
  • Question 2
    1 / -0
    Which is not a magnetic material?
    Solution
    Nickel, Iron and cobalt are magnetic materials which is attracted by magnet whereas copper is a non magnetic material which is not attracted  by a magnet.
  • Question 3
    1 / -0
    Which of the following will not be attracted by a magnet?
    Solution

  • Question 4
    1 / -0
    Magnet was discovered in.............
    Solution
    Magnet was discovered in Greece. It was discovered from a naturally occurring mineral called magnetite.
  • Question 5
    1 / -0
    The north pole of a magnet always points towards the __________ when suspended freely
    Solution
    A north pole of a magnet points towards the geographic north pole of the earth.
    This geographic north pole of the earth is the magnetic south pole of the earth and attracts the north pole of the freely suspended magnet.

  • Question 6
    1 / -0
    A bar magnet has maximum attractive property
    Solution
    Magnets have attractive property and they attract magnetic substances towards them. This attractive property is zero at the middle and maximum at the ends of a bar magnet.
  • Question 7
    1 / -0
    Identify the action involved when north pole of a magnet is brought near north pole of another magnet.
    Solution
    When similar poles of magnets are brought near each other, they tend to repel i.e they push each other away.

  • Question 8
    1 / -0
    When the north pole of a bar magnet picks up an iron nail which of the following are induced in the nail ?
    Solution
    If an iron nail is attracted towards a north pole of the magnet and sticks to it then the magnetic field lines start flowing through the iron nail. As the attraction occurs only in between two unlike poles, thus the side which gets stuck to the north pole acts as the south pole and the opposite side acts as the north pole. Therefore, Option C is correct.
  • Question 9
    1 / -0
    An object which attracts pieces of iron, steel, nickel, cobalt is called
    Solution
    An object which attracts pieces of iron, steel, nickel, cobalt is called a magnet. It is of various shapes and sizes.
  • Question 10
    1 / -0
    Which of the following is not a  magnetic material ?
    Solution
    $$\textbf{Explanation:}$$ Basic stainless steel has a ferrite structure and is magnetic.
    But most commonly used steel is austenitic obtained by addition of nickel, which makes it theoretically non-magnetic.
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