Go to home page Page contents: Homework and quizzes Quizzes Homework set 1 - due Wednesday 15 January Homework set 2 - due Wednesday 22 January Homework set 3 - due Wednesday 29 January Homework set 4 - due Wednesday 5 February Homework set 5 - due Wednesday 12 February Homework set 6 - due Wednesday 19 February Homework set 7 - due Friday 28 February Homework set 8 - due Friday 7 March Homework set 9 - due Friday 14 March |
PHYS 224, Winter 2003 Homework and quizzes Homework will be set, on this web page, each Wednesday and handed in at class on the following Wednesday. The homework will be marked out of 10. The questions marked with asterisks will be carefully graded, and worth 8 marks together. The other 2 marks are for trying all the set questions. These questions are chosen to sparsely cover the required material. You will greatly improve your understanding by attempting other questions (eg from Giancoli) that are not listed below. After the homework deadline the solutions will be posted here. No late answers will be accepted except in special circumstances which you must explain to me. The homework and quizzes together count for up to 20% of the final grade (see exams and grading). There will be a homework session with the TA every week (Tuesday, 12pm, C231). You are also encouraged to discuss the homework or other matters with me during my office hours (Monday 1.30-2.30 and Wednesday 1.30-2.30, B432) Past homework solutions are available by request. Quizzes Quizzes are 10-minute tests which will be given during the class, usually on Mondays. Their point is mainly to monitor your understanding of concepts recently introduced in class, and to stimulate your thought. You will be encouraged to interact with the other students while doing them. Full marks (ten points) will be given for handing in a short test with your name on it and an effort to solve the problem. We will use your answers to try to help us find out what concepts students have most difficulty with.
Quiz 1 - pressure in U-tubes
Homework set 1 - due Wednesday 15 January The following are problems (not 'questions'!) from Giancoli chapter 13. (Remember, * = graded carefully).
15,18,23* - static pressure Homework set 2 - due Wednesday 22 January More problems from Giancoli Chapter 13: A1 - Draw a sketch, and show that the rotation of a ball suspended over an air blower tilted away from the vertical is appropriate to produce a magnus force which tends to push the ball back into the jet.
A2* - Poiseuille flow:
A3. - surface tension:
and some problems from Giancoli chapter 17: Homework set 3 - due Wednesday 29 January From Giancoli Chapter 17:
From Chapter 18: Homework set 4 - due Wednesday 5 February Chapter 18:
B.* Assume the earth's atmosphere is entirely made of a stationary ideal gas, nitrogen (m = 28 a.u.), at a uniform temperature T = 300 K, and assume the surface is all ocean with no land masses.
Homework set 5 - due Wednesday 12 February The following Giancoli problems from Chapter 19: Homework set 6 - due Wednesday 19 February Giancoli problems from Chapter 19: Homework set 7 - due Friday 28 February C1 - What is the temperature of an object which emits black body radiation with a peak intensity at a wavelength of 0.5 microns? Note: Wiens' law and the Planck distribution are given in section 38-1 of Giancoli.
Giancoli Chapter 20 problems: Homework set 8 - due Friday 7 March All numbered problems are from Giancoli. 20-67 - Stirling engine. Can you relate the cycle shown in Fig 20-17 to the operation of the engine shown on this web page?
20-45 and 20-48* - entropy change calculations
During the time of the missing class on Wednesday March 5, please read sections 18-3 to 18-5 and answer these problems: Homework set 9 - due Friday 14 March There are no starred questions this week! Have a go at the following questions. You will get 8 marks for handing in your attempts and 10 for getting the answers. You can find the derivations in any book on thermodynamics or work them out for yourself. D0. Read the hyperphysics sections on the thermodynamic potentials G, H and F. D1. In a 'throttling' process, used to cool and liquify gases, the gas is passed through a nozzle from a high to a low pressure region. The process happens fast so there is no heat flow. Show that the enthalpy H=U+pV of the gas is unchanged during the process. D2. The Gibbs free energy is defined by G = U + pV - TS. Show that dG = -SdT + Vdp. Derive a Maxwell relation between S, T, V and p from this equation. |

Last modified: 4/14/2003 12:50 pm |