http://sites.science.oregonstate.edu/portfolioswiki/ 2020-01-27T00:04:50-08:00 http://sites.science.oregonstate.edu/portfolioswiki/ http://sites.science.oregonstate.edu/portfolioswiki/lib/images/favicon.ico text/html 2017-08-28T14:54:11-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:eepdmpositiondependence?rev=1503957251 Prompt Which is true? a) $x_L(F_L,F_R)$ b) $x_L(F_L)$ Convince your neighbors! a) $x_R(F_L,F_R)$ b) $x_R(F_R)$ Context This SWBQ ... Wrap Up Class discussion. [Powerpoint slide] [PDF slide] text/html 2012-08-23T22:12:20-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:eeswhotmetalcoolcup?rev=1345785140 Prompt “If you drop a hot chunk of metal into a cup of water, which way will energy be transferred by heating? What is the rule that governs this?” Context This SWBQ ... Wrap Up [Powerpoint slide] [PDF slide] text/html 2013-07-29T09:45:27-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:eeswrbsnap?rev=1375116327 Prompt “If you stretch and then let a rubber band snap, what will happen to the internal energy and the temperature of the rubber band?” Context This SWBQ ... Wrap Up [Powerpoint slide] [PDF slide] text/html 2013-07-26T11:34:17-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:eeswthermoterms?rev=1374863657 Prompt “What is Temperature? What is Energy? What is Entropy?” Context This SWBQ is designed to help find how clear students are on the differences in temperature, energy, and heat, and the activity also helps clarify some of the confusions and misconceptions amongst the thermodynamic terms. It also offers an opportunity to refresh students on what entropy is, a term that many students have not seen for several years. This is helpful because one of the greatest challenges for students… text/html 2012-08-23T22:24:06-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:index?rev=1345785846 text/html 2013-07-26T11:16:07-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:inswboltz?rev=1374862567 The Prompt “Determine the dimensions of Boltzmann's constant.” Context This SWBQ Wrap Up [Powerpoint slide] [PDF slide] text/html 2013-07-26T11:18:12-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:inswcompare?rev=1374862692 The Prompt Compare the following two expressions. What do you find? $$ dU=\left(\frac{\partial U}{\partial S}\right)_{V,N}dS+\left(\frac{\partial U}{\partial V}\right)_{S,N}dV+\left(\frac{\partial U}{\partial N}\right)_{S,V}dN $$ $$ dU=TdS-pdV+\mu dN $$ Write down the equivalent two statements for the Helmholtz free energy equation. Compare the statements and find corresponding relationships. text/html 2013-07-26T11:23:06-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:inswtotdifu?rev=1374862986 The Prompt “Given that the internal energy is a function of $S$, $V$, and $N$, write the total differential of $U(S,V,N)$.” Context This SWBQ Wrap Up [Powerpoint slide] [PDF slide] text/html 2013-07-29T09:24:23-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:ppswenergywarm?rev=1375115063 The Prompt “How much energy is it necessary to warm up an amount of air or water?” Context This SWBQ Wrap Up Whenever performing a calculation in any physics problem, one should have a general idea of the magnitude of the answer. By the end of this activity, students should have an idea of the energy necessary to heat water or air, particularly in terms of the specific heat. This small whiteboard question is designed to be very general to force students to consider what important fact… text/html 2013-07-29T09:32:00-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:ppswphononnum?rev=1375115520 The Prompt If the frequency of a normal mode is $\omega_{mode}=10^{12}rads^{-1}$, what phonon number, $n_{phonon}$, does the equipartition theorem predict at room temperature? Context This SWBQ demonstrates to students how the energy stored in a normal mode is directly proportional to the frequency of the normal mode and how the equipartition theorem is useful for finding the phonon number of a normal mode as long as not on the scale $n_{phonon}\, \sim \, 1$. In particular, students must r… text/html 2012-08-31T10:10:25-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:ppswrecheatcap?rev=1346433025 Prompt “Write down something you know about heat capacity.” Context This SWBQ helps students recall what they can remember about heat capacity and help the instructor assess how much students already know. Wrap Up This SWBQ transitions well into approximating the heat capacity of a substance using the equipartition theorem. text/html 2013-07-29T09:40:07-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:ppswspecheatwater?rev=1375116007 The Prompt “Calculate the specific heat of 1 mol of water.” Context This SWBQ ... Wrap Up After being shown the equipartition theorem for solids, this calculation is a good exercise to see if students can effectively use the internal energy to find the specific heat of a material at room temperature. The answer to this problem will also give the common value seen for the specific heat of water at room temperature. FIXME - Extra Information text/html 2012-08-22T22:14:42-08:00 http://sites.science.oregonstate.edu/portfolioswiki/swbq:smsw:title?rev=1345698882 Statistical Mechanics SWBQs