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Machines and inventions

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  • What is this? / Simple or complex machine?
    A rake. It is a simple machine
  • True or false ? Simple machines have one or two parts.
    True
  • True or false ? Machines need energy to work
    True
  • Conductor or insulator material ? plastic
    insulator
  • What is this? / Simple or complex machine?
    A vacumnn cleaner / It is a complex machine
  • What is this? / Simple or complex machine?
    A washing machine. It is a complex machine
  • Which materials flow the electricity through them?
    Conductor materials
  • What invention was part of the Industrial Revolution?
    the steam engine
  • What is this? / Simple or complex machine?
    A spanner. It is a simple machine
  • What invention was invented by James Watt?
    The steam engine
  • What is this? / Simple or complex machine?
    An iron. It is a complex machine
  • True or false? All machines use energy.
    True
  • What invention was used in factories, ships and trains?
    the steam engine
  • What invention started a revolution in communication ?
    The telegraph
  • What invention was invented by Samuel Morse?
    The telegraph
  • Conductor or insulator material ? Water
    Conductor
  • Which materials block the flow of electricity?
    Insulator materials
  • True or false ? Some machines use energy form the sun, wind and water
    True
  • What is this? / Simple or complex machine?
    A hammer / It is a simple machine
  • True or false ? Activities carried out for machines are more difficult to be done
    False
  • Conductor or insulator material ? Rubber
    Insulator
  • What is this? / Simple or complex machine?
    A screwdriver . It is a simple machine