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lshads

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Blog Entries posted by lshads

  1. lshads
    In the early 1900's, name foreigners came to america, and they had bad english skills, espeicaly with tense and past tense. So, one day, a german who just entered the country lost track of the time, as he needed to catch a train , so he asked a physicists "What is time". The physics replied "You will have to ask a philosopher that question, I'm only a scientist".

    Your mother is so fat, men are actually attrracted to her, according to General Relativity

    Many people espouse the works of Renee DesCartes without reference to the pioneering works of the Dutch naturalist Evander DeHoorst. As such, they tend to put DesCartes before DeHoorst.

    Time flies like an arrow. Fruit flies like a banana.


    Einstein on Divorce: "All things are relative. All relatives are things. My relatives took all my things."


    Two archaeologists are standing before a gigantic, fallen statue in the desert (See: "Ozymandias" by Percy Bysshe Shelley). One archaeologist says to the other "A great civilization must've made this." His colleague replies "But what brought them down?"

    Suddenly, the statue comes to life, rises and replies "I got knocked over."

    "Ah," responds the first scientist, "it only stands to reason."



    As part of the standard curriculum in a pre-med college, the
    students had to take a difficult class in physics. One day, the
    professor was discussing a particularly complicated concept. Part
    way through the class, a student rudely interrupted to ask, "Why do
    we have to learn this stuff?"

    "To save lives," the professor responded quickly and continued the
    lecture.

    A few minutes later, the same student spoke up again. "So how does
    physics save lives?" he persisted.

    "It usually keeps idiots like you out of medical school,"
    replied the professor.
  2. lshads
    From a very young age, my dream was to become a scientist. I didn't know that I wanted to discover the god particle or find a cure for cancer or synthesize a new element. I had no idea how broad the term "scientist" was and how many denominations it had, either. The only thing I knew is that it would be pretty awesome to be the guy who mixed two chemicals in a beaker and watch it explode, just like in the cartoons.

    As soon as school became more serious than learning how to write, I already prioritized my focus on the basic math and science we were taught. This process stuck with me throughout Dake and so far in high school. I cherished every lab, where I could explore the topics through hands- on learning.

    Physics jumped out on me. It was love at first test. I loved every single concept of physics. They were all interesting, informative, and I breezed through the tests (at least in B, anyways). My teachers were both understanding and dedicated to teaching with passion and interest. It is because of these two classes that I have my major set wherever I go to college. I have only my two physics class to thank for showing me my own passion.
  3. lshads
    Guys, we have just finished the hardest classes in the school. I think I speak for all of us that senior year was quite stressful, but a great relief as well. We gained knowledge that far surpassed any other year. With Physics and Calculus placed 2nd and 3rd period conveniently, I think we all became morning people! To be honest, I never expected leaving to really effect me the way that it is currently. I am truly going to miss all of my high school friends. We have all toughed out our years, pushing ourselves to new limits, and helping each other along the way. With heavy hearts, we all must say goodbye and move on to our next years of school. We will spread out across the country to take our education beyond that of what we have seen thus far. I will miss my teachers as well, who have helped me reach my potential and helped me to my current grades. I feel ready for college now and whatever life pushes my way. I wish you all the best of luck in your future careers, and I hope we will be able to stay in touch, if we don't see each other in the newspapers making a difference to the world. So long nerds of 2013!!
  4. lshads
    Theoretical physicists develop "mathematical models that both agree with existing experiments and successfully predict future results", while experimentalists devise and perform experiments to test theoretical predictions and explore new phenomena. Although theory and experiment are developed separately, they are strongly dependent upon each other. Progress in physics frequently comes about when experimentalists make a discovery that existing theories cannot explain, or when new theories generate experimentally testable predictions, which inspire new experiments."

    Given this information, it is tough to decide which end of physics would fit me better. I would probably take more of a theoretical view on this, because I like proving theories true through logical proofs. Which one would you be?
  5. lshads
    With all of the renowned technological advances made within the last few decades, many people have sought to create a jet pack for commercialized use. However, although prototypes have been seen, it has been met with relative failure. This is due to the materials required to reduce the weight. Gravity creates an acceleration downward, while the thrust of the jet pack would attempt to create a net force upwards large enough to counteract this force. Unfortunatley, the heavy mass of the person prevents the equivalent thrust to be achieved with materials inexpensive enough to mass produce them. Its too bad too; I always wanted to see a real-life Turbo Man.


  6. lshads
    It has come to my memory that equation dumps are a staple to our physics careers. So, as taken from an old sheet from last year, I figured I might as well start memorizing early! The better recall now the better recall later! (Please excuse the really poor table making)

    [TABLE="width: 749, align: center"]
    [TR]
    [TD][TABLE="width: 748"]
    [TR]
    [TD="width: 226"]


    [/TD]
    [TD="width: 290"]x = x 0 + v 0 t + 1/2at2[/TD]
    [TD="width: 185"]Vƒ = Vo + at[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]f max = μ Ν[/TD]
    [TD]μk < μs alway[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]Fc = mac = mv2 /r[/TD]
    [TD]ac= v2 /r[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]I = F Δt = ΔM[/TD]
    [TD]M = mv[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]W = F d cosθ[/TD]
    [TD]P = ΔW/Δt[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]ET = Ek + Ep[/TD]
    [TD]E = mc2[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]F = -kx[/TD]
    [TD]W = kx2 /2[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]A v = const.[/TD]
    [TD]ρAv = const.[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]I = Q/t[/TD]
    [TD]R = ρl/A[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]Req = R1 + R2 . . .[/TD]
    [TD]1/ Req = 1/ R1 +1/ R2[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]dB = 10 log 10 (I/I0 )[/TD]
    [TD]beats = Δ f[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]Σi = 0 at a junction[/TD]
    [TD]ΣΔV = 0 in a loop[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]Q = mc Δ T (MCAT !)[/TD]
    [TD]Q = mL[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]L1 = F1× r1 (CCW + ve)[/TD]
    [TD]L2 = F2 × r2[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]ΣFx = 0 and ΣFy = 0[/TD]
    [TD]ΣL = 0[/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [TD]( sin θ1 )/(sin θ2 ) = v1 /v2 = n2 /n1 = λ1 /λ2[/TD]
    [TD]n = c/v[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [TR]
    [TD][/TD]
    [/TR]
    [TR]
    [TD][TABLE="width: 748"]
    [TR]
    [TD="width: 227"]F = ma[/TD]
    [TD="width: 290"]F = qE[/TD]
    [TD="width: 193"]Similar Form[/TD]
    [/TR]
    [TR]
    [TD]F = KG ( m1 m2 / r2 )[/TD]
    [TD]F = k ( q1 q2 / r2 )[/TD]
    [TD][/TD]
    [/TR]
    [TR]
    [TD]V = IR[/TD]
    [TD]P = IV[/TD]
    [TD]Paired Use[/TD]
    [/TR]
    [TR]
    [TD]vav = Δ d / Δ t[/TD]
    [TD]aav = Δ v / Δ t[/TD]
    [TD](avg vel, acc)[/TD]
    [/TR]
    [TR]
    [TD]v = λ f[/TD]
    [TD]E = hf[/TD]
    [TD](f = 1/T)[/TD]
    [/TR]
    [TR]
    [TD]Ek = 1/2 mv2[/TD]
    [TD]Ep = mgh[/TD]
    [TD](kin, pot E)[/TD]
    [/TR]
    [TR]
    [TD]Ρ = F/A[/TD]
    [TD]Δ Ρ = ρgΔh[/TD]
    [TD](pressure Ρ)[/TD]
    [/TR]
    [TR]
    [TD]SG = ρ substance / ρ water[/TD]
    [TD]ρ = 1 g/cm3 = 103 kg/m3[/TD]
    [TD](Spec Grav)[/TD]
    [/TR]
    [TR]
    [TD]ρ = mass / volume[/TD]
    [TD]Fb = Vρg = mg[/TD]
    [TD](buoyant F)[/TD]
    [/TR]
    [TR]
    [TD]Irms = Imax / √2[/TD]
    [TD]Vrms = Vmax / √2[/TD]
    [TD]Root Mean Sq[/TD]
    [/TR]
    [TR]
    [TD]1/ i + 1/ o = 1/ f = 2/r = Power[/TD]
    [TD]M = magnification = - i/o[/TD]
    [TD]Optics[/TD]
    [/TR]
    [/TABLE]
    [/TD]
    [/TR]
    [/TABLE]
  7. lshads
    Just in case any of you were wondering, this is what would happen to a baseball if a pitcher could approach the speed of light!

    http://what-if.xkcd.com/1/

    [ATTACH=CONFIG]479[/ATTACH]
  8. lshads
    3)MOMENTS OF INERTIA. These simple equations are a pain in the butt and stop you short of a point or two on a question if you don't know them.
    [ATTACH=CONFIG]584[/ATTACH]
    2)DERIVATIVE RELATIONSHIPS. Enough said. These relationships come in handy on all graphing questions and can pick up points on the questions that are specific to derivatives.

    a = dv/dt
    v=dx/dt
    I = integra(mr^2)
    and so on...

    1)KINEMATICS EQUATIONS. They are everywhere. EVERYWHERE. Those who know when to appropriately use any and all of these equations have control over a good portion of the test.
  9. lshads
    Here are my top 5 tips to performing the best possible:

    5) TARGET THE UNITS IN WHICH YOU PERFORMED POORLY ON TESTS. If you aced that rotational motion test or blew through the early dynamics tests, odds are you don't need to prioritize your study sessions around them. Focus on the tough stuff that you know you could use the extra points for. Getting those extra points that few students usually get will boost a 3 to a 4 and a 4 to a 5

    4) DO EVERY PRACTICE QUESTION POSSIBLE. Each released AP exam is a gift from those old ladies that make these tests. Use them. Especially the free response, since it will help you develop the ability to work through the problems for maximum points

    3) BRUSH UP WITH THE TEXTBOOK. After feeling pretty down about our first electricity test, i felt inclined to pick up my textbook. after blowing the dust off and shooing away the spiders, i opened the book and gained relevant information that genuinely helped me understand the concepts. Don't underestimate the power of the textbook!

    2) EAT FOOD BEFORE ENTERING THE TEST ROOM. If for no other reason then avoiding the embarrassing, silence-piercing growl of your stomach, eating a great breakfast and bringing a snack to the test will make you prepared to focus on displaying your knowledge and not your appetite.

    1) KEEP YOUR MIND OFF THE TEST BEFORE ENTERING IT. Sometimes, trying to slip in that last minute cram will only hurt your long term memory. Trust that all of your hard work will pay off with the grade you deserve!
  10. lshads
    I know all of us have a habit of just getting by in physics, especially on Wednesdays I mean, I'm not going to lie and say I dedicate the full time during these independent units, and sometimes it is honestly difficult to grasp the concept using strictly the materials given. One website that Mr. Fullerton gave us towards the beginning of the year that really helps me get quick and concise information. HyperPhysics allows you to search for specific topic and gives you the facts and diagrams you need without extra wording. It is really helpful, especially while in a jam.

    http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
  11. lshads
    1. Keep up with the blog posts!!! DO NOT PROCRASTINATE LIKE I DID, IT IS NOT VERY FUN TO DO. The blog posts are not a large amount of work, and they are a massive grade booster for the class.

    2. Read the Textbook!!! The few times I took a look at Tipler, I gained valuable, relevant information on the current topic in class. It is by far the most useful tool Mr. Fullerton will give you when you miss a day. When I was out sick for 3 days, the textbook taught me the entirety of Gauss's law, which would have tanked me if I didnt understand it. I wish I had taken more advantage.

    3. If you need help or don't like your grade, talk to Mr. Fullerton!!! He is a very understanding teacher who will go out of his way to make his students happy. You don't have to worry about grades in the class, because if you give your best effort, do you blog posts, and keep up with the lectures, Mr. Fullerton will go out of his way to make sure that you tough out the class and get a grade that you will be proud of.

    Hope this helps, class of 2014!!
  12. lshads
    For those of you who don't have any musical knowledge, the perfect fifth is the best sounding sound interval to the common ear. It is the key ingredient in structuring chords based around the root. With a 3:2 ratio, it creates a nice and pleasing sound to the ear. The most common example of a perfect fifth is a C to a G. Kepler himself, founder of the planetary laws, researched the beat frequencies of the error bound for an imperfect fifth tuning. Just a slight slip-up in tuning can create an unpleasing sound for the human ear. Posted below is a link to the wikepedia page where you can learn more about this interval and also listen to it.
    http://en.wikipedia.org/wiki/Perfect_fifth#The_pitch_ratio_of_a_fifth
  13. lshads
    Okay, here's my thoughts on physics C so far:

    Although the tests are challenging, we are more than prepared for them, and maintaining the difficulty will make the AP test at the end of the year That much more accessible. I enjoy the fact that we expand in every direction the fundamentals we developed in physics B. In this way, the concepts are not too challenging , and the calculus application fits into past knowledge quite nicely. In fact, the calculus problems we are given are actually easier in comparison to the other conceptual questions, even if it's still early in the game and I'm sure it could get pretty rigorous. I like the independence we are given in the momentum unit, and I feel very productive and I feel good about the test coming up. I would like to do other units in this fashion, as long as we can prove the effectiveness through our test scores.
  14. lshads
    Hello, physics students! Lately I have taken an interest in quantum mechanics, in an attempt to improve my grade, but mostly because it is a truely stupefying. It still amazes me that briliant minds like Boltzman, Heisenberg, Euler, among countless others could possibly explain entities that they could "easily" touch but never physically see. Today, I want to give a brief background on the foundation of Quantum Physics: The uncertainty principle. It is this equation that gave Werner Heisenberg credit as the "father of Quantum Mechanics." This equation asserts that there is a fundamental limit to the precision of any measurements taken.
    [ATTACH=CONFIG]512[/ATTACH]
    This assertion is only effective when relating specific pairs, such as momentum and position, energy and time. The concept of this equation is commonly confused with the observer effect, the theory that literally, "a watched pot never boils." The uncertainty principle has been proven to be inherent in all wave-like systems, and the application of it is imperative in superconducting and quantum optics.
  15. lshads
    While we use percent error to dictate how far we off in class, there are far more efficient ways of defining the error of the set. Standard deviation, for example, given a value, will give rise to numbers that fall within one S.D., two S.D. and so on.

    "One can find the standard deviation of an entire population in cases (such as standardized testing) where every member of a population is sampled. In cases where that cannot be done, the standard deviation σ is estimated by examining a random sample taken from the population. An estimator for σ used when sample size is very large is the standard deviation of the sample, denoted by sN and defined as follows:"



    This method is effective for creating intervals for which certain points would have to lie within and give us the ability to decide on percent error for an entire group of values. The closer the value of S.D. approaches 0, the less the error percent is.
  16. lshads
    As late as it might be, I'd just like to take a bit to reflect on the ap exams. We worked our butts off to try and achieve the highest possible. I bough review books, took old practice exams, and worked out all part 2 problems from recent years. Needless to say, i was completely prepared by may to take that test. And yet, I still walked into that exam and came out a little uneasy. The mechanics exam was relatively straightfo​rward, with just one part two that gave me grief. However, mr. Fullerton put it best: "electrici​ty and magnetism was a bear". I hope I'm not the only one feeling this way.
  17. lshads
    I am excited to start my college physics programs next year. Since I have collected so many credits (Thank you Mr. Fullerton and Mr. Powlin!), I will not need to take the first two courses of Physics at RIT. Therefore, I will be taking a physics exploration class the first year. This will allow me to look at all different kinds of physics, even units we never covered in high school. I am very enthusiastic about the quantum level of physics, and I enjoyed the modern unit in B, so I think i will be able to find alot of enjoyment out of the class. I think it will also help me begin to decide the type of physics I will be taking. Also, I have enrolled into Electrical Engineering to have more job opportunities coming out of college. Overall, as this year comes to a close, I can't wait to see what college has to offer me!
  18. lshads
    This quarter was a roller coaster. With my grade in the tank at the beginning after one bad test, I have been climbing very slowly ever since. I enjoy the fact that we are actually having more independent units this quarter. The very first one was very effective, and although we took for granted the class time in these units, our grades showed significant prowess from these tests. I am both excited to buckle down and commence prep for the exams soon, but I am afraid of this new induction unit! I think I could do a lot better to stay on top of things in class. I can't wait to push forward through Physics C into the 4th quarter! Let's see how many more tricks Mr. Fullerton has up his sleeve!
  19. lshads
    As simple as this equation seems, it is a staple in mechanics. It has many different applications. These uses vary from setting up equations to find tensions to simply finding the net force of an object in motion. It is 0 when an object is in constant velocity or when the system is in static equilibrium. Then, when we convert the quantities into rotational motion, and we get net Torque = I(alpha). For an equation that seems very simple and easy to apply, there exist tricky problems that require us to be very careful with our directions of motion. However, with as much practice with them as we've done, they are easy points for our class!
  20. lshads
    Super Mario Bros defies many different forms of physics. Assuming his round belly carries some weight, I would be nice to give him a weight around 200 pounds. Since he can jump over 5 times his body weight, his legs would need to lift at least a tonne to come close to the approximate strength to perform such a feat. In addition, kicking the koopa shells would create an equal and opposite force back onto his feet. He would not be that agile if he were wearing steel-toed boots, so it should hurt a regular human. Then again, can you imagine how boring that would be?

    Thanks to the beauty of the internet, here is a small physics lecture from mario himself!
    http://www.newgrounds.com/portal/view/248844
  21. lshads
    I remember the first time we saw the integral was in physics C. It was extremely intimidating because we struggled to make sense of the differential equations, let alone evaluating the integral itself. The very first problem we got, we were spoon-fed the fact that the integral of (du/u) was equal to ln(u)+C, and that made absolutely no sense to me. Now, into the third quarter and after attending the calculus school of hard knocks both 2nd and 3rd period every day, i think its is safe to say that questions that require differentiation and integration are among the easiest and sought after questions. We chomp at the bit when they ask us to differentiate velocity as a function and get acceleration because we are strong at evaluating them now! Props to our teachers and everyone's rigorous efforts to get this new addition to our math vocabulary down!
  22. lshads
    This summer, I worked under the tutelage of Wade Bittle and Dr Steven Craxton at the university of Rochester. I worked on a project called Dewpoint calculation using flow transducers. The preliminary time at the internship was spent gaining a basic knowledge of integration, and learning about the omega lasers functions and work schedule. Although we never got to see a shot (a single blast would vaporize our corneas) we had a good understanding of the process going on. When fusion occurs, there is still leftover deuterium(a hydrogen isotope) My project took this deuterium and combined it with oxygen in order to reduce the radioactive emission on the town of Brighton. Also, with the code I wrote, we can take in data of the condensate flowing into it, analyze the contents of it, and calculate the mass of the condensate removed in kilograms. Since the container is limited in capacity, this code allows the LLE to figure out when it is time to use the next molecular sieve.
  23. lshads
    Friction is a pain in the butt when we look at kinematics problems. It is the main non-conservative force, meaning that it changes the total energy in the system. When fining net force or total energy, friction is always a tricky negative sitting in the dark to take points away from innocent physics students. The statement "if friction is negligible" yields an instantaneous sigh of relief, since our job just became that much easier. So why should the universe have friction at all? Well, with no friction, there is no fundamental way, other than air resistance, to reduce a net force. Every object would continually accelerate until it collides with another entity. So unless we all want to accelerate and bump into people forever, friction should probably stay for a while. It would be a pretty nice way to speed date, however.
  24. lshads
    Hello world! It is a pleasure to make your aquaintence. I have taken a liking to physics since I took AP physics B. Assuming that we are all nerds, I would guess that this statement would be common (we're all making a blog post on a physics site, arent we?) I am strong in logical reasoning and arithmetic, and would like to improve my test-taking skills throughout the course.

    I am taking AP-C to further my experience in the field to prepare for college and future work. I can't wait to use calculus to make physics simpler.

    I am excited for the interesting labs and projects such as the catapult and bottle rocket (We need to defend our title). I don't feel any specific anxiety for the class other then a little worry about grades.

    EDIT: Had to add a little information and now it finally posts to the blog!
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