Introduction to Magnets: Origins and Properties
10 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What are the two properties possessed by lodestone?

  • It attracts large pieces of iron and sets itself along a definite direction
  • It attracts small pieces of iron and sets itself along a definite direction (correct)
  • It repels small pieces of iron and sets itself along a definite direction
  • It attracts small pieces of iron and moves randomly

    • What is the origin of the word 'magnet'?

  • From the Latin word for iron oxide
  • From the Greek word for natural magnet
  • From the Chinese word for lodestone
  • From the place 'Magnesia' where the ore was found (correct)

    • Why are artificial magnets prepared from iron?

  • Because iron is stronger than natural magnets
  • Because iron is naturally magnetic
  • Because iron is the only metal that can be magnetized
  • Because iron is easily available and can be shaped conveniently (correct)

    • What happens when a freely suspended magnet is allowed to rotate in a horizontal plane?

    <p>It always points in the geographic north-south direction</p> Signup and view all the answers

    What is the polarity named when an end of the magnet rests in the geographic north direction?

    <p>North polarity</p> Signup and view all the answers

    What happens when two like poles of magnets are brought close to each other?

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

    Why were natural magnets found to be inadequate for use?

    <p>They were not magnetically strong enough for use</p> Signup and view all the answers

    How did the Chinese use pieces of lodestone earlier than 2500 B.C.?

    <p>To guide their boats</p> Signup and view all the answers

    What ore was used to make the first known magnets?

    <p>Iron oxide (Fe3O4)</p> Signup and view all the answers

    What are artificial magnets prepared from?

    <p>Iron</p> Signup and view all the answers

    More Like This

    Magnets Quiz
    8 questions

    Magnets Quiz

    LargeCapacityAlexandrite avatar
    LargeCapacityAlexandrite
    Fun with Magnets: Activities and Science
    8 questions

    Fun with Magnets: Activities and Science

    WholesomeTsilaisite avatar
    WholesomeTsilaisite
    Fun with Magnets: Exploring the Magnetic World
    7 questions

    Fun with Magnets: Exploring the Magnetic World

    CongenialCatSEye avatar
    CongenialCatSEye
    Magnets and Electromagnets Quiz
    10 questions

    Magnets and Electromagnets Quiz

    StylishPeach4517 avatar
    StylishPeach4517
    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser