Official Act Science Thread February 2013

<p>Well, this one sucked...</p>

<p>I thought it progressively got easier, the first two experiments were fairly difficult but the UAV and aluminum can one seemed easy.</p>

<p>How did people answer the hot/cool air rod questions? I thought that section was the hardest</p>

<p>Mere, I’m not sure if I got it right but I put that the heat traveled from the cold end to the hot end.</p>

<p>ughh i put hot to cold:( that may have messed up the whole section for me</p>

<p>I’m almost positive heat traveled from hot end to cold end.</p>

<p>Kongo, you may be right, but my reasoning was that it was asking for net heat traveled, and when something is cold that means the heat has left it, which would mean it went to the hot side.</p>

<p>it was hot to cold. heat always goes from high to low (ap chem)</p>

<p>heat travels from hot to cold (AP physics)</p>

<p>There was a voltmeter question one I forgot to do so I just put B. Can anyone confirm or deny?</p>

<p>heat went from hot to cold</p>

<p>nerve cells was also an answer</p>

<p>For the voltmeter one, I think it was D, which was something about measuring the difference in charges on the inside and out. I might be thinking of the wrong question, though…</p>

<p>did any one get 100 as the temp</p>

<p>Yea it was 100</p>

<p>I picked hot to cold since the reaction hasnt allowed heat to travel yet.
What about decided if the RIF (Or was it called RAF?) and wavelength were constants or variables?
I said the RIF was a variable and the wavelength was constant.</p>

<p>i did too!</p>

<p>I think RIF was a constant, and wavelength was a variable.</p>

<p>Yes RIF is variable since it changed for the different graphs, while the wavelength stayed at 610</p>

<p>Yeah, the wavelength value was a maximum for each of the dyes, so it stayed constant.</p>

<p>Oh I got my terms messed up, yes it was wavelength.</p>