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4.3 Science Review

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  • What phenomenon that occurs in nature is caused by static electricity?
    lightening
  • Where is the magnetic field the greatest?
    At the poles
  • The complete path electricity moves in within a circuit with no breaks in the flow, is which circuit?
    Closed Circuit
  • A nail with a wire coiled around it connected to a battery is called a what?
    electromagnet
  • What is the difference between an electromagnet and a permanent magnet?
    An electromagnet has to be turned on and off, but a permanent magnet is always magnetic.
  • A material that allows electrical current to flow through it easily.
    Conductor
  • Who invented the lightening rod and experimented with lightning?
    Benjamin Franklin
  • A circuit that connects several objects one after the other so that the electrical current flows in a single path.
    Series Circuit
  • Name the three forms of energy that electrical energy can be transformed into.
    heat, light, and mechanical or motion energy
  • What makes an electromagnet strong?
    The more wire wrapped around the nail, the stronger the electromagnet
  • Give an example of light energy.
    A lamp or light
  • A material that does not allow electrical currents to flow through it easily.
    Insulator.
  • Give an example of heat energy.
    toaster
  • Who invented the electric motor?
    Michael Faraday
  • What is an example of a conductor?
    Anything that has metal.
  • A circuit contained a break that does not allow the flow of electricity, is which circuit?
    Open Circuit
  • What could be used to close a circuit with a gap?
    A conductor or anything with metal in it
  • Which variable changes in the experiment?
    Independent
  • A penny is an example of what?
    A conductor
  • Who invented the lightbulb?
    Thomas Edison
  • What does static electricity cause?
    hair sticking up, getting shocked when touched
  • Which variable is the data that you are testing?
    Dependent
  • What is an example of a good insulator?
    plastic, rubber
  • A circuit that connects several objects in a way that the current for each object has it own path, is which circuit?
    Parallel Circuit
  • Give an example of mechanical energy.
    fan
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