Electric Charges and Fields: Introduction Quiz
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Questions and Answers

What is the study of forces, fields, and potentials arising from static charges called?

  • Electrodynamics
  • Electronomics
  • Electromagnetism
  • Electrostatics (correct)
  • What phenomenon is described as the discharge of electric charges through the body due to accumulation from rubbing insulating surfaces?

  • Lightning
  • Electric discharge
  • Electric shock (correct)
  • Generation of static electricity
  • Who is credited with the discovery that amber rubbed with wool or silk cloth attracts light objects?

  • Thales of Miletus (correct)
  • Plato
  • Aristotle
  • Archimedes
  • What does the word 'electricity' derive from?

    <p>Greek word for amber</p> Signup and view all the answers

    Which type of charges repel each other and which type attract each other?

    <ul> <li>charges repel, - charges attract</li> </ul> Signup and view all the answers

    In which chapter will the topic of static electricity be discussed?

    <p>Chapter One</p> Signup and view all the answers

    What did the glass rod and wool do when brought close to each other?

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

    When two plastic rods rubbed with cat’s fur are brought close to each other, what happens?

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

    What did the plastic rod do when brought close to the glass rod?

    <p>Attracted the glass rod</p> Signup and view all the answers

    When a glass rod is rubbed with silk, what kind of charge does the rod acquire?

    <p>Positive charge</p> Signup and view all the answers

    What happens when an electrified glass rod is brought in contact with silk?

    <p>They neutralize each other's charges</p> Signup and view all the answers

    When a glass rod is rubbed with silk, what kind of charge does the silk acquire?

    <p>Negative charge</p> Signup and view all the answers

    What is the property that differentiates the two kinds of charges?

    <p>Polarity of charge</p> Signup and view all the answers

    What phenomenon is described as the discharge of electric charges through the body due to accumulation from rubbing insulating surfaces?

    <p>Static electricity</p> Signup and view all the answers

    Which Greek philosopher is credited with the discovery that amber rubbed with wool or silk cloth attracts light objects?

    <p>Thales of Miletus</p> Signup and view all the answers

    What does electrostatics deal with?

    <p>Study of forces, fields and potentials arising from static charges</p> Signup and view all the answers

    What is the study of forces and fields arising from moving charges called?

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

    When a glass rod is rubbed with silk, what kind of charge does the silk acquire?

    <p>Positive charge</p> Signup and view all the answers

    What did the plastic rod and cat’s fur do when brought close to each other after rubbing?

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

    What can be concluded from the observation that unlike charges acquired by the objects neutralize each other's effect?

    <p>The charges were named as positive and negative by Benjamin Franklin.</p> Signup and view all the answers

    What is the property that differentiates the two kinds of charges?

    <p>Polarity of charge</p> Signup and view all the answers

    Why do glass rod and cat's fur repel each other?

    <p>Because glass rod acquires a positive charge and cat's fur acquires a negative charge.</p> Signup and view all the answers

    What happens when electrified glass rod is brought in contact with silk after being rubbed together?

    <p>They neutralize each other's effect.</p> Signup and view all the answers

    Which type of charge is conventionally called positive by Benjamin Franklin?

    <p>The charge on glass rod</p> Signup and view all the answers

    What does it mean for an object to be electrically neutral?

    <p>It has no electric charge.</p> Signup and view all the answers

    What did scientists conclude after many careful studies about the electrified objects?

    <p>There are only two kinds of electric charge.</p> Signup and view all the answers

    What happens when two plastic rods rubbed with cat’s fur are brought close to each other?

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

    What do we call the property of objects like glass or plastic rods, silk, fur, and pith balls acquiring electric charge on rubbing?

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

    What kind of charge does an object have when it possesses an excess of electrons?

    <p>Negative charge</p> Signup and view all the answers

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