to describe an experiment to demonstrate that metals transfer heat at different rates?
552742
simple - metal bars, same width and length different metals though - one side a candle at each end and the other end a thermometer - measure the temp. at different time intervals
647752
Define HDT in your experiment.  Are you looking at a heat history shift?
90666
Here are some experiments.
826242
rubbing 2 things together to create heat.\nRub yor hands together really fast and see what happens.
155434
Let me restate what I think you are asking in this experiment:\n\nHow does the electricity heat the hot dog using this device?\n\nTo formulate a hypothesis based on the question you need to examine your knowledge of ways that that something can be heated using electricity. \n\nHere are my ideas: (maybe you can add to this) \nI will give you some unlikely ideas as well as likely. This is good science, to consider the unlikely idea too. \n1. the electricity is flowing through the hot dog and heating it\n2. the electricity is making a magnetic field and that is heating the hot dog\n3. the electricity is heating the wire inside the hot dog and this is heating the hot dog\n\nEach of these can become a hypothesis. After thinking about these, you may realize that if (1) is true, you would get an electric shock if you touched the hot dog. If (2) is true then you could measure a magnetic field with a compass, and anyway does a magnetic field make heat? If (3) is true then the wire inside the hot dog will get hot without the hot dog being on it, and you have a new hypothesis:\n\nThere is a property of the wire that makes it get hot when electricity flows through it. \n\nYou know from looking here: http://www.answers.com/topic/electrical-resistance-1\nThat  \nwhere\nP is the power measured in watts\nI is the current measured in amperes\nR is the resistance measured in ohms\n\nSo, P is the heat in your hot dog. I is the current in the wire coming from the wall outlet. So the test here would be, if you can measure the resistance with an ohm-meter of the device, that if you put the resistance and the current value (measured with an ammeter) into this formula, you will get a value for P that can be measured roughly by the temperature change in the hot dog. You probably don’t have the instruments to make these measurements, but this would be a way you could test your hypothesis. \n\nHope this helps. I'm sure you will want to simplify this some more. \n \nP.S. a watt is actually a RATE of converting electricity to heat, so it has units of  work/time, but I'm trying to keep this simple- so I just called it heat
640210
Not all solids conduct heat with the same efficiency, but it's true all solids conduct heat!
976281
Maybe you want to think along the lines of a change in energy state and a resultant heat ( gain or loss ) absorbing light in a given wavelength range.
454802
it's basically from the movement of electron transfer from one of the metal to the other. to know the flow of electrons from which metal to which, u need to know their standard reduction potentials
43501
Its a Metal, hence responds to / is a conductor of heat.\n\nIts fluid so the expansion per gradient of heat would be highest.\n\n\nAll other liquids are not a conductor of heat ( or as good as mercury)
902977
Simple....experimental
96040
The phrasing is wierd, shouldn't there be a from between flow and the?\n\nIf two substances have different _temperatures_, heat will flow [from] the hotter [substance] to the colder [substance].\n\nThis is because heat, at the molecular level, is related to how fast molecules are moving. When a substance whose molecules are moving faster comes in contact with an object that's moving slower, the faster molecules will collide with the slower molecules of the second object, slowing down the faster molecules while speeding up the slower ones. Thus, heat (average kinetic energy of a substance) is transferred from the hotter substance to the colder one.
695621
I remember this question since it was on the test once:\n\nList the following kinds of matter by how well they conduct heat (from the best to the worst): Wood; air; metal; water.\n\nMy answer was the correct one and it was: Metal; water; wood; air.
360182
Heavy Metal! Just joking. http://www.scienceproject.com/projects/intro/elementary/EX057.asp Go here, they have a lot of information.\n\nhttp://www.science.ca/askascientist/viewquestion.php?qID=1216 And this one. It is clear that aluminum conducts the best heat.
726134
How long?  In time?  Like, seconds? \nI guess it depends on the intensity of the heat source.
1030054
You would find, if you had a sensitive enough measuring system, that the energy is dispersed through the acid as heat. \n\nWhen acid oxidises metal there is an initial activation energy required to break the metal lattice and that energy nromally comes from the heat already in the system. When the lattice is under stress sit requires far less energy to break down and the activation energy is lower. That means that more heat is retained by the system as heat.\n\nYou can see for yourself that a metal lattice under stress breaks down and oxidises more readily by simply bending an iron nail and dropping it in a few mm of salt water for a few days. The iron will rust almost exclusively where it was bent. That is because the  bend represents a point of stress in the lattice.\n\nWith less energy required to break down the metal alttice the overall reaction becomes more energetically positive and the amount of heat in the system increases.\n\nThe amount of additional heat this represents is tiny, but with an incredibly stable atmosphere and a very sensitive thermometer you would regeister the lost energy as a higher temperature than an identical beaker of acid with an uncompressed spring.
540767
The conductivity of aluminium is required. A detailed solution of the Heat equation (A pde) is necessary to get an accurate answer. In the absence of any simplifying assumptions, this problem is not trivial
345166
Friction, Heat, Acid.