Major Experiment Help Please and thanks?

experiment was determine some of the factors (material type, color of the absorbing surface) that affect the absorption of heat energy.


The inside of a shoe box was insulated using Styrofoam and a thermometer was placed through a hole inside the box. 2 absorbing surfaces were made from aluminum foil. The upper surface of one sheet was painted black and the other left shiny. The following tests were then carried out.





A sheet of shiny aluminum was placed in the bottom of the box. The top of the box was covered with glass and the temperature of the air inside the box was recorded. The lamp was then turned on and the temperature was recorded after 3 minute.


The procedure was repeated, this time using the blackened aluminum as the absorbing surface. Three set of data were collected. One test was done with the glass cover, one without the glass cover and the third with a glass cover but at an angle of 45º.


Ok. so y is it that more heat is absorbed when aluminun is black and covered?

Major Experiment Help Please and thanks?
1) more heat is absorbed by the blackened aluminum because black absorbs heater better than all other colors or reflective surfaces.








2) more heat is MEASURED in the box when the box is covered because the heat can not escape from the box by convection - which is how most heat moves around in the earth's atmosphere.


we thing about radiation and conduction being the way heat moves around most, but it is really the convection that accounts for most heat movement, within our atmosphere.
Reply:firsty u should know that why do we see anything black it is because anything which looks black absorbes the light rays falling on it and due to this feature black absorbs heat with light



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