Haven't started Heat/Thermodynamics for AP Physics B yet..

Test Preparation AP Test Preparation
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<p>What should I do now? I haven't reviewed any chapters yet (I'm working on Nuclear right now, basically done with atomic by cramming). Should I just keep working forward and don't worry about reviewing the big sections (Mechanics/E & M) or should I stop after Nuclear and start reviewing? Is it possible to finish thermo in 3 days and be able to do the problems on test day?</p>

<p>What specific topics should I look in thermo that is always on the MC and FR?? Probably PV=nRT right? what else? Those isothermal or w/e graphs?</p>

<p>PS I haven't taken chem before. no background</p>

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<p>You should know q=mcdt.</p>

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<p>know q=mcdt, pv=nrt
isothermal stuff u can kind of figure out - but study</p>

<p>For me, it doesn't count for anything (engineering needs physics C, my school doesn't offer it), so I'm gonna focus on Bio
Monday's gonna be fun - Bio in morning, physics in afternoon - maybe 10 mins between tests :D</p>

4

<p>This is an easy concept. Just take an hour to look through it because there is often an FRQ on this topic and a few MCs.</p>

<p>Know the laws - U=Q+W, calorimetry - Q=mcDt (may have lab Q), W=PV, and PV=nRT </p>

<p>A normal FRQ presents a PV graph and applies the PV=nRT and W=PV formulas
Some others present cycles and apply U=Q+W</p>

<p>unpolloloco, my school doesn't have phys C either, but I'm self-studying it. I figured AP Calc + AP Phys B = AP Phys C</p>

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<p>Thermo is that easy?? I thought it was the hardest chapter out of all of physics.. So I can understand all that in less than 3 days?</p>

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<p>I wouldn't worry too much about it, just practice process of elimination. I knew almost nothing last year, I took a regular physics class and my AP class I learned almost nothing. I just crammed with my AP book. When the test came around I guessed on the majority of MC, and the FR I had almost no clue on all of them, even drew a picture of batman for an answer. Got a 4.</p>

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<p>How is getting a 4 without knowing the concepts well possible? I mean... is the curve really that good?</p>

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<p>What the heck is "q=mcdt"? We never learned this in our class O_o</p>

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<p>"What the heck is "q=mcdt"? We never learned this in our class O_o"</p>

<p>heat = mass X specific heat capacity (C) X change in temperature (delta T). It's the same formula that you use in Chem.</p>

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<p>Say, for example, you wanted to know how many joules of heat it takes to heat 50 grams of water from 25ºC to 80ºC. The specific heat of water is 4.184 J/gºC.
q = (50)(4.184)(80-25) J</p>

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<p>Stranger07, q=mcdt is basically q = m x c x DELTA t (the d = delta im assuming)</p>

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<p>the curve on the test is very good</p>

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<p>Guys, you don't need to know q = mcdt or calorimeter questions asking for equilibrium temperature when objects of different starting temperatures are placed together. Also no latent heat.. so you don't need to know the phase change diagrams or Q=mL. That part of heat was taken out of the AP test in 2004 or pretty recently. So yeah, that might be why your teacher never covered it. I think some of the review books are still including it though it seems?</p>

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<p>Is there an easy way to remember all of the positive and negative signs of W=P(Delta)V?? I'm having a bit of trouble with it. I just need an easy way to remember it, preferrably a mneumonic device =] Thanks.</p>

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<p>yeah q=mc*delta T was taken out in like 03/04 or something like that, you DONT have to know it.</p>

<p>It was replaced with fluids btw (i hate fluids.)</p>

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<p>Can someone explain this objective to me? Thanks in adv!</p>

<p>Explain qualitatively how the model explains the pressure of a gas in terms of collisions with the container walls, and explain how the model predicts that , for fixed volume, pressure must be proportional to temperature.</p>

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<p>thermodynamics is very conceptual; just make sure you understand PV diagrams because when thermodynamics appears on the FR, it's usually in the form of a PV diagram.</p>