Magnetizing Needles Quiz
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Questions and Answers

What happens to the sewing needle after rubbing it with a bar magnet multiple times in the same direction?

  • It becomes electrically charged
  • It gets magnetized (correct)
  • It becomes rusty
  • It becomes heavier
  • What is the significance of pinning a red cork ball to the South Pole and a white cork ball to the North Pole of the magnetized needle?

  • To make it conduct electricity
  • To create a decoration
  • To identify the needle in a bowl of water
  • To test its buoyancy (correct)
  • When two magnetized needles are floated side by side with like ends facing each other, how do they move?

  • They repel each other (correct)
  • They rotate clockwise
  • They sink to the bottom
  • They attract each other
  • What happens when two magnetized needles are placed with unlike ends facing each other?

    <p>They attract each other</p> Signup and view all the answers

    How does the process of rubbing a needle with a bar magnet help in understanding its behavior?

    <p>It aligns the magnetic domains in the needle</p> Signup and view all the answers

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