Heat Transfer Experiment - Heat Video Lecture - Class 7

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all right now that you'll neither the
way it's time to get to business now
let's start this experiment here is the
objective we are going to demonstrate
the conduction convection and radiation
of heat here are the materials two
glasses this will be used to support the
iron rod be careful not to drop a
lighter touch the an ice cube this will
be used for the second phase cut out
what pieces and wax candl motor starts
experiment you're putting with the fat
party party party that's me
here's a fact
traduction is a transfer between
substances that are in direct contact
with each other
alright now let's start experiment right
we're gonna take these glasses and put
them right here to support the IRA then
I'm gonna use the iron rod this will be
the main source of our conducting our
heat now I'm gonna place the candle
which will be there since the candle is
not big enough we'll use this to support
the candle now it's time to light this
candle caution do not burn yourself
flash will be bleep all the experiments
are okay let's go okay
now it's time to light this candle
alright
the candle is lighting up the ride it's
making me a hot so let's see what the
wax this no hold the wax we use just use
a fork now as you can see the heat from
the fire is rising up into the rod and
that is called radiation from the rod is
touching the rocks and that it's gonna
heat up the wax and melt the wax that is
called conduction you see we can we can
easily see it be orange vinaigrette it
is melting as you can see we have
noticed that there has been a slight cut
in the wax the wax as you can see over
here it turns solid we don't need the
car door anymore so we don't need
anymore anymore and it's lighter it
sucks let's get a new one all right
let's start the second phase we need an
ice cube let's go get the ice let's get
some ice here it is put the ice cube in
the spoon light up the candle now put
ice cream on top in the spoon if you
take a closer look you can see the water
starting to come at the bottom of the
ice cube right now the ice cube is in a
tiny full of water
the candle had made the ice cube shrink
in size and it has made a big pool of
water in the moon and it also been some
water in here but we have don't you know
that out yes so that is our observation
for this the ice cube xr8 drastically
and there's a pool of water since fire
is hotter than the normal temperature it
melts even faster than everyone else if
you were to compare a normal Street to
this under my eyes he would probably
still be full there weren't just a
little bit so I save it before the
particles are spreading apart and
they're coming into a liquid form
here's buddy with one last fact party
party party that's me here's one last
bath radiation is a transfer of heat
between substances through the air all
right we have heard a lot today such as
how substance changes its take we have
also learned the convection conduction
and radiation of heat now we're done see
you later
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