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Science: Electricity

  1. What is an electric current?
    An electric current is a flow of electrons.
  2. What is required for an electric current to flow?
    For an electric current to flow, you require a: power source, conductor, appliance and occasionally a switch.
  3. What does a power source do?
    A power source supplies the power.
  4. What does a conductor do?
    A conductor carries the power. E.g. wires.
  5. What does an appliance do?
    An appliance converts the electricity to a useful form. E.g. a lightbulb.
  6. What does a switch do?
    A switch controls the supply of power.
  7. What measures current?
    An ammeter (A) measures current. This ammeter is wired into a circuit.
  8. How does an ammeter measure the current?
    The ammeter measures the current by counting the number of electrons that go pass it per second.
Author
nzsurfer
ID
46401
Card Set
Science: Electricity
Description
Basics of Electricity Unit
Updated

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