Uploaded by icyyoungdj

Heat Transfers

Conduction is a process in which two things touch
together and their molecules rub together creating
heat in the form of conduction. An egg cooking on
a stove is a perfect example of conduction
because it shows how the heat is made with the
molecules from the stove and pan touching with
the egg’s molecules and in turn cooking the egg.
Convection is a process in which heat is
transferred through either gas or liquid in a
continuous cycle of hot liquid/gas rising and cold
liquid/gas sinking.
This picture perfectly shows how the heat is
transferred to the water and the hot water rises and
cold water sinks.
Thermal radiation
Thermal radiation is a process where a
heat source sends of electromagnetic
heat waves that affect a object in two
ways. The object will either absorb the
heat waves and be heated up, or the
object will make the heat waves bounce
off of it avoiding absorbing the heat.
In this picture the heat source is the sun
and it also shows one object absorbing
the heat and the other one absorbing it.
Comparing all the heat transfers
Conduction requires objects to be touching to make heat, while convection can be
done through just the sun's rays and liquid or gas
Conduction requires objects to be touching to make heat, while radiation is
something emitting heat
Convection deals with heat moving through liquids or gas, and radiation is heat
being emitted from a source