<p>exactly knights</p>
<p>that’s what i saw/got</p>
<p>I don’t remember the 22% either, it was frog related but what did the question read?</p>
<p>actually it’s probably metamorphism</p>
<p>i didn’t even know rocks could metamorphose until i just looked it up. there’s such thing as metamorphic rock and serpentine is a metamorphic rock</p>
<p>I happened to know all of the questions that required background knowledge :D</p>
<p>Edit: yes it was 1991</p>
<p>Edit: crap wrong thread</p>
<p>^um, I don’t even remember that one…what test form did you have?</p>
<p>I got light for the on in question</p>
<p>I think I missed the potential energy question…I believe someone on here said it increased as it became untangled or whatever…but that just doesn’t make logical sense to me- it seems like the more tangled the wire, the more potential energy. Thus, when it is uncoiled and released its kinetic energy, it should have a lower potential energy. Someone please correct me if I’m mistaken.</p>
<p>No your right, if its twisted it unwinds and holds the potential to “do work” when it is not twisted it would not move without a third party source. Same thing as attaching a string around a pencil and spinning until it can’t be spun, the string when released will uncoil</p>
<p>^Thanks jkaplan. Science is the only thing keeping my score where it needs to be :/</p>
<p>Vince that is correct.</p>
<p>The question clearly asked for the PE stored in the coil. The coil stores PE as it rotates. Moreso, the KE that is caused by the repelling is converted into PE.</p>
<p>Though the electric potential energy is converted to kinetic energy.</p>
<p>Im confused now - what is the answer to the PE question</p>
<p>Is it “as it twists = more PE”?</p>
<p>Derivate, </p>
<p>the electrical energy is converted to the KE of the spheres moving. This KE is converted pack to PE.</p>
<p>For example: I drop a ball on a spring. The initial PE is stored by the gravity and mass, and is converted to KE as it descends. When it hits the spring, the spring stores the KE into PE.</p>
<p>The question clearly asked for state of the COIL.</p>
<p>^ I don’t remember it being worded like that…it was something like “if the wire is uncoiled (or less twisted) its potential energy:” and I think it was that its potential energy decreases</p>
<p>I remember it being worded “As the coil is twisted the potential energy” Answer: Increases because the coil is spun…or something along those lines</p>
<p>wait the PE decreases???</p>
<p>Anyone know the exact wording of the question?</p>
<p>I got “increased” because I remember the question worded as I stated above</p>
<p>Lol, I thought the question read completely differently. Does anyone else remember any of the difficult/ tricky science questions?</p>
<p>I said decreased but if it was worded the way people are saying then I think I’m wrong.</p>