Physics (AS & A Level) · May / June 2024 · Paper 53 · Question 1

Fig. 1.1 shows a small solid metal cylinder of mass m, length L and diameter d. L d Fig. 1.1 The cylinder is heated to a uniform temperature. The cylinder is then removed from the heat source and the cylinder is wrapped in an insulating material. The temperature of the room is TR. At time t after the cylinder starts to cool, the surface temperature of the cylinder is TC. It is suggested that TC is related to t by the relationship (TC – TR) = Ze – UAt mc where A is the total surface area of the cylinder, c is the specific heat capacity of the metal, and U and Z are constants. Plan a laboratory experiment to test the relationship between TC and t. Draw a diagram showing the arrangement of your equipment. Explain how the results could be used to determine values for U and Z. In your plan you should include: • the procedure to be followed • the measurements to be taken • the control of variables • the analysis of the data • any safety precautions to be taken. 3 Diagram 4 [15]

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