Discover the Shocking World of Electrostatics
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Questions and Answers

What branch of physics studies electric charges at rest?

  • Electrostatics (correct)
  • Electrodynamics
  • Quantum physics
  • Thermodynamics

    • What is the source of the word 'electricity'?

  • The French word 'électricité'
  • The German word 'Elektrizität'
  • The Latin word 'electrum'
  • The Greek word for amber, ἤλεκτρον (ḗlektron) (correct)

    • What law describes the forces that electric charges exert on each other?

  • Newton's law
  • Coulomb's law (correct)
  • Ohm's law
  • Faraday's law

    • How does the force between an electron and a proton in a hydrogen atom compare to the gravitational force acting between them?

    <p>It's about 36 orders of magnitude stronger</p> Signup and view all the answers

    What is an example of an electrostatic phenomenon?

    <p>The attraction of plastic wrap to one's hand after it is removed from a package</p> Signup and view all the answers

    Study Notes

    Branch of Physics

    • Electrostatics is the branch of physics that studies electric charges at rest.

    Origin of the Term 'Electricity'

    • The word 'electricity' originates from the Greek word "ēlektron," meaning amber, a fossilized tree resin known for its ability to attract lightweight objects when rubbed.

    Law of Electric Forces

    • Coulomb's Law describes the electrostatic forces that electric charges exert on one another. It states that the force is directly proportional to the product of the magnitudes of the charges and inversely proportional to the square of the distance between them.

    Comparison of Forces in a Hydrogen Atom

    • The force between an electron and a proton in a hydrogen atom is much stronger than the gravitational force acting between them. The electrostatic force is approximately 10²⁹ times stronger than the gravitational force at the atomic scale.

    Example of Electrostatic Phenomenon

    • A common example of an electrostatic phenomenon is static electricity, which can be observed when a charged balloon attracts small bits of paper or causes hair to stand up when rubbed against a surface.

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    Description

    Test your knowledge of electrostatics with this quiz! Explore the fascinating world of electric charges at rest and learn about the forces they exert on each other. Challenge yourself with questions on amber, static electricity, and more.

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