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Electricity and Magnetism

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  • Give me 3 examples of conductors.
    lemon juice; potatoes; metals, etc...
  • What materials are attracted to magnets?
    Materials that have metals.
  • Give me 3 examples of insulators.
    Wood; plastic; rubber ; glass ; etc...
  • What type of energy is this?
    Luminous Energy
  • A receptor needs _______________ to operate.
    electricity
  • True or false? Static electricity is an accumulation of an electric charge on the surface of an object.
    True.
  • What type of energy is this?
    Electrical Energy
  • True or false. A conductor carries the current from the generator to the receptor.
    True.
  • True or false? Electric charges accumulate in one place or flow from one place to another.
    True.
  • Define SWITCH.
    A switch turns an electric current on and off.
  • True or false. All magnets have 2 opposite poles (north and south).
    True.
  • True or false. Magnetism is NOT a specific property of materials that contain metallic elements.
    False.
  • Explain. What can we use if we don't have a compass?
    We can use cork, a magnet, water, and a needle.
  • Electric currents need to flow between _________ and ________ charge flows.
    positive ; negative
  • What type of energy is this?
    Thermal Energy