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The transfer of heat through an object without the object itself moving is called
conduction.
Conduction is the process of transfer
of heat through solids, this happens when one end of
a conductor is heated, the atoms gain
kinetic energy and start to vibrate passing on their
vibration energy to neighbouring atoms.
All
metals are
very good conductors of
heat.
Under similar conditions, different materials transfer heat at
different rates.
Copper transfers heat better than aluminium.
Higher tier only:
The
reason copper is a good conductor of heat is that it has many free moving electrons. When
heated, the electrons move
faster and diffuse quickly through copper.
Poor conductors
of heat are called insulators.
Plastic is
an example of a good insulator of heat.
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