5 Questions
Rubbing a sewing needle with a bar magnet several times will always magnetize the needle.
True
A red cork ball should be pinned to the North Pole of the needle to make it float in water.
False
When two needles with like ends facing each other are floated side by side, they repel each other.
True
Placing the needles such that unlike ends face each other (White ball of first needle and red ball of second needle) will make them attract each other.
True
Rubbing a sewing needle with a bar magnet only once will magnetize the needle.
False
Test your knowledge on magnetizing sewing needles and the behavior of magnetized needles using a magnetic compass. Explore how magnetized needles float in water and identify north and south poles.
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