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Electric Circuits + Sound

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  • Sound waves travel faster when moving through a _________ because there are more molecules.
    solid
  • Large vibrations create ______ sounds.
    loud
  • The further we are from a sound, the _____ it sounds.
    softer
  • Which of these changes will cause the bulb to light up?
    C. Turn on battery
  • What is the energy source?
    battery
  • Will this circuit light the bulbs?
    No
  • Our ears are designed to detect sound moving through _____.
    air
  • What electronic component symbol is this?
    BATTERY
  • Is salt water a conductor or insulator?
    conductor
  • How many of the bulbs will remain lit if the wire is cut at the point shown by the arrow?
    0
  • What electronic component symbol is this?
    BULB
  • What does this symbol represent? 
    OPEN SWITCH
  • The best conductors are made of....
    copper / metal
  • The closer we are to a sound, the _____ it sounds.
    louder
  • Small vibrations create _____ sounds.
    soft
  • When we pluck a guitar string, it ______ making sound.
    vibrates
  • Is iron a conductor or insulator?
    conductor
  • Loud sounds can ______ our ears.
    damage
  • Sound is when ________ travel through a medium.
    vibrations
  • Is a coin a conductor or insulator?
    conductor
  • Which circuit shown will produce light when the switch is close?
    B
  • Is rubber a conductor or insulator?
    insulator
  • A cell has a negative and ..... poles.
    positive
  • Name 3 electric things that uses battery-powered.
    Remote, headphones, toys
  • Name 3 electric things that uses mains-powered.
    TV, washing machine, laptop
  • Sound travels slower when moving through a _____ because there are less molecules.
    gas
  • Should we use electrical equipment with wet hands?
    No
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