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