Gizmos+on+Heat+Transfer

See the [|Gizmo online resource] for your own exploration of these four or other subjects. Also, if you wish to visit the four websites represented below, scroll down for works cited section or click on any of the pictures for the link to its webpage.

This screenshot shows two flasks holding colored water (of different colors) which have different temperatures. I started exploring the diagram by heating up the yellow colored flask to 95 degrees Celsius, the highest temperature possible, and cooling the blue colored task to 5 degrees Celsius, the lowest temperature possible. I then changed the hollow pipe which seperates the two flasks from copper to gold. I set the green "play" button and watched both of the flasks turn neon green and the temperatures of both flasks to change to 50 degrees Celsius, which I noticed, is half the temperature of both flasks added together. (95 degrees + 5 degrees = 100 degrees, that divided by 2 = 50 degrees) The diagram shows how heat is conducted through the hollow pipe and is transfered from one flask to the other. This diagram allows you to calculate the temperature of different materials when light is fixed upon it. I first experimented with the materials being my independent variables. I kept the light white and at a 45 degree angle, as well as adding the glass cover. I noticed that of all the materials, the black brick was the most absorbing, its temperature raising at about 47 degrees Celsius. Water, green and blue brick and ,suprisingly, metal were the least absorbant. After my small experiment, I tried moving the light around, using the black brick. I noticed that the black brick's temperature increased the most (to 50 degrees Celsius) when the light was at a 90 degree angle. I don't know how this is important but it must be as it made a significant change in the materials' temperature. This diagram allowed you to see the change in the water's temperature due to the energy transferred from the cylinder, which you can increase in mass or in its falling distance, to the small generator, giving the water potential energy. With the diagram, I investigated how the cylinder's falling distance could affect the water's temperature. I noticed that from its highest point, (1000 meters) the generator moved much faster for a longer period of time, giving the water more time and force to increase in temperature. Also, with more water at the same falling distance and mass of the cylinder, the temperature of the water increased less than when the water had less mass. This diagram allowed you to change only one variable, the metal rod connecting Beaker A to Beaker B. I collected the data from all four of the trials and noticed that the least conductive, meaning the slowest to transfer heat from one beaker to the next, was the glass rod. At about 46 min, one beaker was still at 93 degrees Celsius while the other was at abotu 7 degrees Celsius. (Both of the beakers were supposed to stop transferring heat when they had both reached 50 degrees Celsius.) The steel rod transferred heat for 46 min but both of the beakers reached 50 degrees Celsius at that point. The aluminum rod took 23 min to transfer heat to both beakers so that they reached 50 degrees Celsius in that time while the copper rod only used 13 min to transfer heat so that both beakers were at 50 degrees Celsius. This shows the conductivity of each material, glass being the worst and copper, the best.

Overall:
These gizmo diagrams all relate to how heat can be transferred from one object to another, either through conductivity, absorbtion or conduction. The "Energy Conversion in a System" (figure 3) deals with potential energy and the diagram has actually helped me understand the idea of energy, whether potential or in action. "Conduction and Convection" (figure 1) and "Heat Transfer by Conduction" (figure 4) both conclude in a balance of heat.

Credits:
 * [|Gizmo]
 * [|Heat Transfer by Conductivity]
 * [|Energy Conversion in a System]
 * [|Heat Absorption]
 * [|Conduction and Convection]