Physics 7408: Further Mechanics and Thermal Physics Topical Past Paper Questions

The first law of thermodynamics can be expressed by the equation $ Q = \Delta U + W $. State the meaning of each term in this equation. [2 marks] Q ___ $ \Delta U $ ___ ___ W A system consists of a perfectly insulated room containing only an empty refrigerator. The refrigerator i…

Which can lead to a value for the absolute zero of temperature? [1 mark] A Boyle's law $ \underline{0} $ B Brownian motion $ \underline{0} $ C Charles's law $ \underline{0} $ D Rutherford scattering $ \underline{0} $

Figure 9 shows air trapped in a vertical cylinder by a valve and a piston P. The valve remains closed throughout the experiment. A mass is placed on top of P. P moves downwards and the volume of the trapped air decreases. There are no air leaks and there is no friction between th…