Study

Magnetism

  •   0%
  •  0     0     0

  • Negtively charged _______ move around the outside of an atom.
    electrons
  • Magnets have two poles, what are they?
    North Pole (N) and South Pole (S)
  • The mineral ________ is a natural magnet
    magnetite
  • This acts like a magnet but only when an electric current flows through it
    electromagnet
  • Opposite poles ________ each other.
    attract
  • The earth is filled with hot liquid _____, that helps form the magnetic field.
    iron
  • True or False: Just because an object is attracted to a magnet, does not mean it is a magnet itself.
    True
  • Magnets push each other away because identical poles ______ each other.
    repel
  • What animals can detect Earth´s magnetic field and use it to navigate?
    bees, pigeons, salmon
  • _________ is an object´s ability to attract certain metals.
    magnetism
  • The earth´s ____________ helps protect it from radiation and solar wind.
    magnetic field
  • Any object that has a magnetic force
    magnet
  • a temporary magnet that only gives off a magnetic force for a period of time
    induced magnet
  • In an _______________ the electrons moving through a wire create a magnetic field.
    electric current