Study

Electricity - Year 9

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  • Voltage in a circuit is measure with what device?
    voltmeter
  • In an circuit what does this symbol represent?
    light globe
  • In an circuit what does this symbol represent?
    voltmeter
  • What units is voltage measured in?
    volts
  • Electricity is the flow of what?
    Electrons
  • In an circuit what does this symbol represent?
    ammeter
  • In an circuit what does this symbol represent?
    bell
  • What THREE does a circuit need?
    1. complete conducting path 2. a load 3. a power supply
  • In an circuit what does this symbol represent?
    switch
  • Name a resistor.
    Toaster, kettle, iron, light globe etc...
  • In an circuit what does this symbol represent?
    battery / power source
  • In an circuit what does this symbol represent?
    resistor
  • Is a ammeter connected into a circuit in series or parallel?
    series
  • What units is resistance measured in?
    ohms
  • Current in a circuit is measure with what device?
    Ammeter
  • Electrons have what charge?
    Negative charge
  • Is a voltmeter connected into a circuit in series or parallel?
    parallel
  • What units is current measured in?
    amperes or amps
  • DC stands for...
    Direct current
  • What is voltage?
    The pushing force, pushing the electrons around the circuit
  • Name ONE type of temporary electricity.
    Static electricity or lightning
  • If I want to operate two light globes independently of each other - would I connect them in parallel or series?
    parallel
  • AC stands for...
    Alternating current
  • What is current?
    The number of electrons flowing past a certain point in a circuit per second