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Electricity and Magnetism

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  • The Earth's magnetic field is called ___
    the magnetosphere
  • Particles that orbit the nucleus are called ___
    electrons
  • When two magnets repel, the lines ___
    extent away from each other
  • All matter is made up of ____
    atoms
  • True or false: electromagnets can't be switched off
    False
  • Who discovered that electricity and magnetism are connected: Oersted, Ampere or Faraday?
    Oersted
  • What do you need to make an electron leave its orbit?
    a force
  • A hammer hits a bell to produce sound. is it a Maglev, speakers, microphone or electric bell?
    electric bell
  • In a stable atom, there are the same number of
    protons and electrons
  • Do neutrons have a charge?
    No, they are neutral
  • Ampere discovered the electron but he called it the ___ ___
    electrodynamic molecule
  • Electrons have a ___ charge
    negative
  • Microphones work by transforming sound vibrations into ____
    electricity
  • The maglev is a ___ that uses ___ to move forward
    train / magnets
  • When an electron leaves its orbit, the atom becomes ____ charged
    positively
  • When two magnets attract each other the lines___
    extend from one magnet to the other
  • A moving magnet can produce ___ with a turbine.
    electricity
  • The magnetosphere protects the Earth from ___
    solar radiation (the harmful rays of the sun)
  • the name "maglev" means ___
    magnetic levitation
  • Protons have a ___ charge
    positive
  • An atom has a nucleus made up of ___ and ____
    protons and neutrons
  • A conce vibrates in this device in order to make sound? (maglev, speaker, microphone, electric bell)
    speaker
  • The direction of the _____ of electrons determines if a substance will be magnetic?
    orbit
  • Who invented a simple electromagnetic motor: Oersted, Ampere or Faraday?
    Faraday
  • Who discovered the particle that we now call the electron: Oersted, Ampere or Faraday?
    Ampere
  • Electricity is the movement of ____ from one ___ to another
    electrons / atom
  • The cone inside a speaker is attached to a coil that moves through a ____ ____
    magnetic field
  • the centre of the Earth is made of ___
    liquid iron
  • Two magnets can attract or ___ each other.
    repel
  • The North Pole is actually the ___ ____ of the magnetosphere
    south pole
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