<p>The question with the forces acting on the ball in free fall, was there retarding force from the mass of the ball?</p>
<p>Isn’t drag related to density, which involves mass?</p>
<p>What was the antimatter one? Positron?</p>
<p>What was the greatest current and the least current? 1 and 4? 2 and 5?</p>
<p>someone create a tinychat room and post link</p>
<p>Did you guys think it was difficult?</p>
<p>Was the particle with the greatest mass a neutron?</p>
<p>It was on par with the Princeton Review tests and harder than Kaplan. The antimatter one was positron, the most massive particle on was neutron. Can you guys remember any magnetism problems? There were a lot of those and I suck at them. The right hand rule is like the one thing I know and I don’t think it was on there.</p>
<p>I remember one of them was something (I think a force) depended on current and length of wire but not velocity. Did I get that right?</p>
<p>For circular orbit of a satellite was it net force=constant, direction of acceleration=constant, and angle = changing? What about the one with the projectile? I think I put force=changing (I think), acceleration=changing, angle=constant.</p>
<p>I thought particle with the greatest mass was neutron, but wasn’t sure about that.</p>
<p>Antimatter was positron (which I didn’t put…)</p>
<p>[2w8ke</a> - Tinychat](<a href=“Live video chat rooms, simple and easy. - Tinychat”>Live video chat rooms, simple and easy. - Tinychat)</p>
<p>Wait wasn’t the one with the greatest mass the alpha particle? cause it has 2+ and 2 neutrons. And what did you guys say for the de Broglie wavelength q?</p>
<p>I don’t think alpha particle was an option. I would have put that too. I think it was</p>
<p>(something I can’t remember)
Electron
Neutron
Neutrino
Positron</p>
<p>Are there different versions of the test? Because I don’t remember any of the ones discussed here…</p>
<p>Probably. I don’t remember the question you’re referring to either. Can you explain it a little more</p>
<p>Does anybody remember the one about converting an electron into energy? it was just e=mc^2 right</p>
<p>e=(9x10^-31)(3x10^8)^2
e=(9x10^-31)(9x1016)
e=81x10^-15
e=8.1x10^-14</p>
<p>Yeah, but they had x10^-13 as a choice, so you had to choose that.</p>
<p>Okay good that’s what I did but I stared at it for a while because I couldn’t figure out why they would put that as a choice instead</p>
<p>My question had the same set of answers that you listed, except I’m sure that there was an alpha particle option. The question was asking which one had either the least or the greatest (can’t remember which) de Broglie wavelength (wavelength = h/p). And I don’t remember the one you just asked about haha so I’m guessing there are different versions.
For the question about at which point would an object have the greatest acceleration due to gravity from planet X, was it the one that was on the surface of the planet, and not the one halfway through?</p>
<p>Don’t remember that question, but I’m pretty sure that would be the correct answer if I had it.</p>
<p>Oh, and is an emf induced in a coil if it moves with the magnet? I thought no, because relative to the coil the magnet isn’t moving, but I wasn’t sure.</p>
<p>To answer Michael, For the question where you moved a wire in a magnetic field, the induced emf was reliant on all three options (strength of magnetic field, length, and velocity)
This is because emf=Blv</p>
<p>I was certain about 4 of them. My DE physics teacher is teaching us, like, normal Physics or something.</p>