Ask people in other departments, ask the faculty especially. They have one where you can toy with frequency, amplitudes, wavelengths, etc. Word problems are much more difficult for me to answer than just a simple integration or differentiation. Vote. it's defined by its operations and relationships with other numbers. nobody gives you marks for remembering a class last year...). If it's not easy at the start, then they lose enthusiasm really quickly. Homework Statement: So I have a question which goes like this: For every question in maths, if you change a number slightly, what happens to the result? Lv 4. I guess I really am just stupid” is an example of the belief that someone should be completely competent and achieving in all ways in order to be a worthwhile person. I was under the impression that physics was about explaining the real world. They explain it in a way that might be easier to grasp than your textbook or lectures. OK, but what is it? I don't understand the algebra in this answer Thread starter pkc111; Start date Jan 13, 2021; Jan 13, 2021 #1 pkc111. L= 7.1 km from the finish line, a bird begins. The math part of it is no problem to me. Understanding the answers doesn't matter if you don't understand why they are the answers. So for example, I understand my electromagnetic fields classes way more than I ever understood physics II and the problems are way more involved than physics II . In physics, everything just seems so "hand-wavey". Posted by just now. Don’t get me wrong, I work hard for physics but I just can’t grasp concepts as quickly as I can with math. You can be anti-realist and a strict induction-oriented empiricist and that's fine, but I think it's just wrong to characterize the median physicist as endorsing that understanding of physics. You've asked a deep, sweeping, historic question...no need to wrestle with it alone. These figures are taken from Nuclear and particle physics by C.Williams. Introductory Physics Homework Help. Others struggled, and had to work hard, but eventually figured out the material. Any tips to get better at physics? I don't see that in many people. By using our Services or clicking I agree, you agree to our use of cookies. Physicists routinely make an appeal to the best explanation (abduction) to justify preferring one theory over another. For the sake of clarity, I will be using å to represent rotational acceleration. although I'm sure it must be amazing to go from physics to engineering. Physics demands a lot out of you, and I’ve realised that I just can’t put that amount of work in, no matter how much I try. "-Albert Einstein. Is there a better way to learn physics? So if the charges are equal, the electric force will end up positive; if their different, the electric force will end up negative (Why? Yes...lots of neurons and internal organs. Good luck. Many people just try to jump to advanced concepts without having a deep understanding of the basics. I've already seen questions similar to this subject asked around here before, and they sort of help but not that much, so I thought I'd ask here too anyway (even though I don't expect much out of this either): I had to drop my physics class because I just can't really understand the material covered at all, even though my instructor spoke very clearly and was very nice. Yeah, I'm not so sure about this really. I can understand Calculus II but damn physics just doesn’t like my brain and vice versa. I'm currently studying A level physics independently as an older student and I'm finding it hard to make sense of some the concepts. Does anyone know any conceptual physics websites that actually explain the concepts? The truth is that no one “just understands” physics. I know engineering would be an option, but what do you think specifically, and any other degrees outside engineering, such as another science like geology for example? Happy to help. This is something I often hear students say around the midterm. We still don’t understand physics. If you give it your all you WILL make it, but only if you do. It helps in E&M to think of charges of a tiny type of mass and E and B fields as a type of gravity, with certain differences. They think they’re not smart enough for it when the truth is that they just aren’t capable of working with that amount of dedication. I don’t understand the physics of any of the objects on the table. Gravity, as you know, is a force that attracts things to each other. If you have taken Calc 3, you know what a vector field is (if not, it is a n-dimensional infinite space that contains vectors in each of n directions). Go for Fundamental of Physics by Halliday and Resnick if you want to prepare for the A-levels. A runner is jogging in a straight line at a. steady vr= 2.2 km/hr. If the angle between their initial directions was 117°, determine the components of their combined velocity after the collision. I don't know much about particle physics, but I've just started learning about sea quarks, and how there is an indefinite amount of quark-antiquark … Press J to jump to the feed. 1 decade ago. If you can stay on top of all of the coursework and understand the majority of what's going on you'll be way ahead of the curve. 1 2. What's the basis of that? Press J to jump to the feed. Read the Question Carefully. I don't really understand sea quarks... Close. Electricity is another thing that baffles me. Can someone explain? Quote from: RobC on 24/12/2020 08:17:03QuoteIt's a polite way of saying Philip Ball doesn't understand it. The koans are of his own imagination, so they don’t function as a nonsensical alternative history of physics. we define it by defining how it acts on other particles. Some of us don't learn well, and some people don't teach well. Think about if you’re cut out for a PhD, I definitely am not so I’ve decided to just do a masters. Don’t understand PHYSICS QUESTION? runner). There is battle in your head between common ideas and new ideas. Let's say that blame, if we are going to call it that, may attach on both sides. I am currently a sophomore in college working on a math major. Naked Science Forum GOD! I don't understand this physics problem? Papers from physics journals (free or otherwise) are encouraged. I cant say for sure you'd get the same out of it as I don't know your interests or passions. If so, then why am I "envisioning" something somehow doing something? New comments cannot be posted and votes cannot be cast. A positive charge will have the vectors point away from the charge, and a negative charge will have the vectors point towards it. Physics is an unnatural act. Like kinematics, etc. I don't understand why affirmative action would be a problem for physics departments. There's always this nagging feeling that something isn't quite right. What matters is how much you are willing to put in your best effort. This cannot be exactly right. Now, there's the Law of Coulomb (the one that goes F=(kq1q2)/d2). The sings + and - were assigned by humans, you don't need to overthink it; it's just a way to tell us the behaviour of the force. If it wasn’t that they calculate Physics marks in conjunction with Chemistry marks I would never have been able to pass Science at school. Like what is a vector? I tend to struggle on the tests because even though I understand the math itself, I don't fully understand why I'm applying it and thus I don't know when to apply it either. Now the issue I have with Physics is that it has so many math problems and I don't understand the metric system. I'm just an amateur in physics, but my understanding is that concepts like "electric field", "positive charge", "electron" are abstractions that help us understand and predict behaviors. For all of our elaborate computational and experimental abilities, we don’t understand basic things like why time works the way it … In math, everything is precisely defined and easy for me to follow. Homework Statement: So I have a question which goes like this: A 3.0 kg block rests on a 30° slope and is attached by a string of negligible mass to a solid drum of mass 0.85 kg and … Go for Fundamental of Physics by Halliday and Resnick if you want to prepare for the A-levels. Engineering is still fairly heavy mathematically though just not as intense as Physics. Engineering is like a more messy, complicated version of experimental physics. How will you measure resistance to determine a rule for calculating the effective resistance of one or more resistors wired in parallel? Chanda Prescod-Weinstein reviews Cosmological Koans: a Journey to the Heart of Physics by Anthony Aguirre. Don’t let the subject bog you down before you even tackle it. Press question mark to learn the rest of the keyboard shortcuts. I don't understand HOW you learn chemistry/physics at the most fundamental level. The brain is incredibly plastic and the more you use it for something the better it gets at it. Physics is about explaining the behaviors we see around us using mathematics. These fields will also demand a lot of work from you but they offer really good returns which keep you motivated. I have to say that even though I was willing to learn and indeed wanted to succeed, I just didn't in physics. When we use vectorial quantities the negative sign stands for an opposite direction. With something like physics, the ONLY thing that matters for most people is self-discipline. Well, that one explains that the electric force between two things is defined by the product of their charges, times the constant K (someone discovered it), divided by the square of the distance between them. The phrase “I don’t understand my physics class. It seems like most Americans are raised in a culture of ease. I don't understand physics? is very well expressed and shows you have exceptionally curiosity...that will be valuable if you become a professional physicist. If you are a kid/new to physics or if you are someone who has lost touch with physics and wants to understand it deeper rather than being mathematical/thorough, you should read this book. Come to your class with questions if you don't understand something and don't give up on questions without at least making a few attempts first. Introductory Physics Homework Help. I am a freshman in college level physics, studying to become an engineer. Introductory Physics Homework Help. Posts should be pertinent, meme-free, and generate a discussion about physics. It was never adequately explained (the example of rubbing silk on glass was used), and eventually I just had to accept that these things exist and work with them. That and, well, the salary.In basic physics – material covered in high school and low level university courses – the methodology is straightforward. I would suggest watching some YouTube videos on the topics you are struggling with. 145 11. It takes years, decades, for it to click. I don't understand how a tension related to a torque would have this formula Thread starter KittyCat1534; Start date Nov 22, 2020; Nov 22, 2020 #1 KittyCat1534. Please report trolls and intentionally misleading comments. You have to enjoy little things, getting to understand the way the world works little by little. I think some people just may not be cut out for it. Physics sounds horribly complicated, but most of its basic level questions are similar – once you get the concept, you get the solution. Although this test is quite comprehensive, there are a couple of things you don’t need to fret about. The earth puts out a gravitational field at every point in space, and you feel the gravitational force as your mass times the field at that point. You can charge something negatively by rubbing two things with one another (that's one method), you'll be transferring electrons from one object to the other, that's called charging by contact. Try to Understand the Situation. Whilst computer science may not be for you, necessarily, don't feel like you can't change degrees, or that you're not intelligent enough for a degree. And the truth is, unless you’re very passionate about it, the returns you get for that work aren’t much. It's harder to say, because attempts to examine its interior fail, unless extraordinary high energy is used. You know that equal charges reppel and different charges attract. This is the field of high-energy particle physics; perhaps you'll take a course in it, but I doubt you'll find it more satisfying re your question. It's just a very 'out there' concept that is hard to visualize, and for me visualization of what's going on is the key to understanding physics (which is what makes more advanced topics so much more difficult; not because the math is hard but because there isn't really a way to visualize it). If the football has a mass of .58kg, & the time of contact with the ball is .013s, what is the force exerted by teh ball on the kicker's foot? what else could be possibly be defined about it? There’s n… Otherwise, it'd be saturated with people already. Why does Δ(BA) = AΔ(B) when A is constant? My experience was the opposite - undergrad engineering just a much tougher curriculum. Don’t get me wrong, I work hard for physics but I just can’t grasp concepts as quickly as I can with math. Physics and Mathematics are extremely important subjects. Yeah, that's not correct. Jackson Award for Excellence in Graduate Teaching, on which the present article is based. It will never answer all the "why" questions; you can only ever answer such questions within a model. HW Help. I have been told that it is like the "pressure" of the electrons as they flow into the circuit. The particles of the atom are made up of sub-particles but these are not knowable in any meaningful way. Organize the Information. Introductory Physics Homework Help. We discuss some top tips below to help you gain an understanding of physics and achieve good exam results in this subject. I have never understood how you approach subjects like math, physics or chem. You think that if you're not smart enough for maths and physics you can still be a good engineer ? Pushing it further sends you straight to metaphysics and philosophy. I don't understand physics at all? I was doing fine the first semester but during the second semester I slipped somewhere into the low B's (which I mean isn't a problem since I finished with an 85 first semester) but I'm actually concerned now because the final can make or break it. The battle for Bengal, to be fought in polling booths in a couple of months from now, is today being fought in Kolkata over the legacy of iconic freedom fighter Netaji Subhash Chandra Bose. In third year now, still working part time but at a different company, much smaller, and learning loads and meeting really interesting people in computing. line at vb= 4.4 km/hr (2 times as fast as the. Can't understand physics Thread starter piisexactly3; Start date Feb 12, 2014; Feb 12, 2014 #1 piisexactly3 . That much can explain why not everyone goes for a physics career. So I would recommend that you switch to subjects like Statistics, Economics etc. i don't understand physics!!? When we talk about charges, we are talking about the amount of atomic particles in something ('+' is for protons and '-' is for electrons, yeah we chose the signs for both). However, their are some differences between electric and gravitational forces. I didn't get things quickly, and lacked the self discipline to persevere and study it. , an new equation is really similar to the best decision I made... Drag a magnet through a coil to illustrate Faraday 's Law get things,! To study Biology, Chemistry, mathematics, history and Law think that if you ca do! Number is requires a mathematical model that defines useful concepts and uses them approximately... To this time as “ midterms ” physics Stack Exchange is a question and answer for. Theoretical concept is introduced, an new equation is really similar to the middle ( approximately of... Our Services or clicking I agree, you agree to our use of cookies i don't understand physics reddit understand! 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