I'm wondering what alloy if copper was used? Pure copper has a much higher thermal conductivity than aluminum, but berrillium copper is much less, for example.
Test conditions were pretty shotty in this one. The rods should have been held in place, it would have also been a good idea to make sure that all the butter applied was the same size by measuring it. And, if they wanted to show us that all the rods were the same length and diameter before they started the test, rather than us just eyeballing it, that also would have been good.
Nice try for heat conductivity test, however since it is posted by School of Science and Mathematics, specific heat capacity, cooling by convection (via exposed surface since those bars are not insulated) and sample mass should be at least considered and calculated (also thermal exchange interface between the center part and specimens looks bit dodgy). Than make prediction and after that conduct the test. This was more alchemy rather than scientific test.
You should've made the rods stationary. Because copper should be better than iron and seeing ur video, there is an error, you place iron rod directly on top of the fire at 0:34 so it s not fair really.
Copper has the best thermal conductivity out of all these metals, it also has a very high thermal capacity hence why it was able to absorb so much heat.
This must be a extreme liberal instructor, where logic and reason are void... Copper melts 5th? You're not even holding the fire directly in the center, FAIL.
Interesting question. Here the metal heat capacity also needs to be considered, not just thermal conductivity. More importantly, the butter's heat capacity is a factor too. There is no guarantee that the exact same amount of butter was added to each rod. Even so, this is actually a test of thermal diffusivity rather than thermal conductivity. Copper actually still has a slightly higher thermal diffusivity than aluminium so should start melting the quickest, but the difference in diffusivity is very small, much smaller than the difference of the two in thermal conductivity. The reason why copper was not melted fastest here may be that the rods were not perfected heated uniformly, and copper was not 100% pure (purity affects conductivity greatly).
As opposed to an extreme conservative instructor, where conspiracy theories and prayers will yield the answers. Please keep your idea of intellectualism out of science.
I'm wondering what alloy if copper was used? Pure copper has a much higher thermal conductivity than aluminum, but berrillium copper is much less, for example.
Test conditions were pretty shotty in this one. The rods should have been held in place, it would have also been a good idea to make sure that all the butter applied was the same size by measuring it. And, if they wanted to show us that all the rods were the same length and diameter before they started the test, rather than us just eyeballing it, that also would have been good.
Nice try for heat conductivity test, however since it is posted by
School of Science and Mathematics, specific heat capacity, cooling by
convection (via exposed surface since those bars are not insulated) and
sample mass should be at least considered and calculated (also thermal
exchange interface between the center part and specimens looks bit
dodgy). Than make prediction and after that conduct the test. This was
more alchemy rather than scientific test.
So which ever one melts the butter first conducts the most heat???
Copper should be the best performer, WTF
Came from school rn
what sort of aluminum alloy is that?
You should've made the rods stationary. Because copper should be better than iron and seeing ur video, there is an error, you place iron rod directly on top of the fire at 0:34 so it s not fair really.
Copper has the best thermal conductivity out of all these metals, it also has a very high thermal capacity hence why it was able to absorb so much heat.
and what was after iron?
Where is scientific repetition for accurate testing? Should have learned that in middle school.
Warning:
The result is not aligned with the referenced thermal conductivity. You may want to check out
czcams.com/video/RHQ17S72ON4/video.html
Can anyone tell me what the name for this conductivity device is? I would like to get some for my class. Thanks in advance for your time.
I have 2 questions.
Which metal cools down first?
And which metal is the coolest?
2 ans
Aluminium
Heavy Metal
That's perfect
I have the same doubt too.
AI melt butter melts first
I wish they had titantium in this video
Amazing
I like this I want this
Wait copper should have been the fastest.....
Saarika Ramesh no silver is the most conductive
one dolla snake-Copper is actually the best conductor,therefore silver would actually not be the most conductive
@@onedollasnake you are correct, however since silver was not used in this experiment, the copper one should have come on top.
@@parn7351 no. Silver is the best metal for both thermal as well as electrical conductivity.
tungsten?
It should have gone:
Copper
Aluminium
Brass
Iron
Nickel
Stainless Steel
I think, I'm not entirely sure but I think that's correct
yep.
This must be a extreme liberal instructor, where logic and reason are void... Copper melts 5th? You're not even holding the fire directly in the center, FAIL.
Ehhh, pretty sure copper is to second best to silver. What a joke. See thermtest.com/thermal-resources/top-10-thermally-conductive-materials
Interesting question. Here the metal heat capacity also needs to be considered, not just thermal conductivity. More importantly, the butter's heat capacity is a factor too. There is no guarantee that the exact same amount of butter was added to each rod. Even so, this is actually a test of thermal diffusivity rather than thermal conductivity. Copper actually still has a slightly higher thermal diffusivity than aluminium so should start melting the quickest, but the difference in diffusivity is very small, much smaller than the difference of the two in thermal conductivity. The reason why copper was not melted fastest here may be that the rods were not perfected heated uniformly, and copper was not 100% pure (purity affects conductivity greatly).
As opposed to an extreme conservative instructor, where conspiracy theories and prayers will yield the answers. Please keep your idea of intellectualism out of science.
Wasn’t sure how copper was so low
Stainless steel coating for engine
Copper is better than all
BOOST YOUR LIFE BY ASHISH KUMAR GUPTA silver is slightly more conductive
i thought the same
I did this and copper came second
Shush neak
@@fedeesssr1598 ok
SHUSSSSSSHHHHHH
Copper is more conductive than aluminum.
This is a very confused piece of science and should be removed
why?
Not trying to be rude, but why?
@@lav3nderbees Coz Cu is most conductive amongst all the above materials. So technically, butter on Cu should melt first.
K (thermal conductivity) of Cu = 385 W/m-K & that of Al = 200 W/m-K
@@VivekR_Harry that makes a lot of sense, thank you!
school lmao
This is the stupidest experiment.