The question is: 1-state the objective of the experiment and explain briefly what was done to achieve this objective. 2-explain the effect of the specimen dimeter on the unsteady state heat transfer 3-explain the effect of the specimen material on the unsteady state heat transfer 4-discuss the errors and their sources which might occurred in this experiment and affected its results.

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Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.