Recent content by Maiapa

Hello! I'm writing an essay on 'relationship between density and thermal conductivity'. Could anyone explain to me the relationship? e.g. is it proportional or reciprocal? I'm kind of closing to the answer by doing an experiment. I took two concrete blocks with different densities and got...

Hello! I'm writing an essay on 'relationship between density and thermal conductivity'. Could anyone explain to me the relationship? e.g. is it proportional or reciprocal? I'm kind of closing to the answer by doing an experiment. I took two concrete blocks with different densities and got...

Hello, I thought about your suggestion but i think you maybe misunderstand my topic. The topic is 'variety thermal conductivities according to different densities'. So I'm using 2 blocks of concrete with different densities. I don't understand why I don't need to use insulator. If i use...

Hello Thank you for your advice.. I'm trying to get it done right away! I've learned lots of things by preparing this experiment for my extended essay (IB program) Actually, I'm little bit warring about the fact that IB syllabus doesn't include the concept of thermal conductivity and...

Hello and Thank you. I just bought a hot plate which shows how much power is supplied to produce heat. My experiment will be easier as i can just take the value and put it in the equation. Wiki dictionary defines the term 'steady state' as "a state when a recent observed behavior of a system...

Thank you again and again. Now I think I'm getting closer and closer to the answer. But still have some questions. If I use a commercial hot plate how can i measure the power supplied. Should I just put the value of watt from specification of the hot plate? For example, it says AC220V...

Thank you again! But the thing is... what is the real concept of joule? Is it electricity that i flow through the metal? or.. Is it just heat? If it is heat, how can i measure it? and how to use joule meter? hmm... it gets vaguer. One more question, if you were me, what would you...

Thanks for your reply. I got one more question. I'm going to heat one side of a block using a plate of copper (or other metals). If electricity flows through the copper it will heat the concrete up. When I'm doing this, how can i measure Q (heat flow per second). Could you give me an...

hello! I'm investigating on thermal conductivity of concrete blocks. I've got an equation for calculating K, which is Fourier's law. Q'=-k×A× ∆T/l I have to make the experiment simple as possible as i can. My plan is to heat one side of a block of concrete and measure the temperature difference...