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Posted by on Saturday, December 8, 2007 at 12:51pm.

Why will a magnet attract an ordinary nail or paper clips but not a wooden pencil?

  • physics - , Saturday, December 8, 2007 at 12:56pm

    A magnet can only attract objects that are made of "ferromagnetic" materials (such as iron). A pencil is not made of ferromagnetic material and hence is not attracted to a magnet.

  • physics - , Thursday, May 8, 2008 at 9:26pm

    The atomic mass number of an element is the same as the number of its ?

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