Organize the Information. Good luck = ). 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. 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? 145 11. And don't be fooled into thinking engineering will be any easier. Physics is about explaining the behaviors we see around us using mathematics. A runner is jogging in a straight line at a. steady vr= 2.2 km/hr. For every question in maths, if you change a number slightly, what happens to the result? It will never answer all the "why" questions; you can only ever answer such questions within a model. We continue our “How to Study…” blog series where we share the best tips and techniques for improving your study of different subjects. We discuss some top tips below to help you gain an understanding of physics and achieve good exam results in this subject. I don't understand how observations of the universe and theories behind the cosmos support the Big Bang Theory. New comments cannot be posted and votes cannot be cast. When the runner is. I didn't understand reddit at first but it's on elf my favourite sites now because it can easily be tailored to your own interests. 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 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). And the truth is, unless you’re very passionate about it, the returns you get for that work aren’t much. For example, the microwave background could be explained through different mechanisms in space. Homework Statement: At what average rate does the magnetic field need to change to induce emf of 1.0 V. See attachment question 1. 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. 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. For the sake of clarity, I will be using å to represent rotational acceleration. A barefoot field-goal kicker imparts a speed of 16m/s to a football initially at rest. It happened to me with psychology and I ended up wasting 2 years of my life. I am trying to understand what exactly voltage is. So I would recommend that you switch to subjects like Statistics, Economics etc. Is a dog more than its behaviors? like what more is there to a number. A simple and clear explanation of all the important features of quantum physics that you need to know. We are not in the business of explaining, but of describing and writing down mathematical models. In my first semester, I took an Introduction to Physics class. Posts should be pertinent, meme-free, and generate a discussion about physics. Good luck. So, whenever a new theoretical concept is introduced, an new equation is also, (in most cases). I understand the impact that the eliptic orbit has on the speed of the earth and why that would lead to a true noon happening after 12pm in February and before 12 pm in late autumn but when I map the true noon I notice 2 bumps and it's the second variation I don't understand. Like what is a vector? I have to constantly ask stupid questions and I feel like I’m the least popular in my class because of it. Others struggled, and had to work hard, but eventually figured out the material. Like kinematics, etc. Don't worry, at first E&M is very difficult, but after a while you get used to it and it becomes more natural. And to be frank I think because of it I was a little better prepared for physics grad school than a lot of my classmates. I would suggest watching some YouTube videos on the topics you are struggling with. I'm studying physics at university at the moment (first semester) and while I do like everything we're learning, it's also a huge amount of effort and I don't really see the point. But for me the maths being applied in a more real world sense and seemingly less conceptually helped me grasp it much more. This is something I often hear students say around the midterm. The … flying straight from the runner to the finish. The math and types of problems will be different, but it'll be just as hard. This cannot be exactly right. 9 0. Homework Statement: At what average rate does the magnetic field need to change to induce emf of 1.0 V. See attachment question 1. I got two years through my Physics Undergrad before deciding that I just couldn't hack it. I taught university-level intro physics for several years, and believed that anyone could be good at physics. I am a junior in High School and I am absolutely stuck in the mud. The force on a charge in an electric field is qE, or the charge the force is acting upon times the electric field at that point. 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. although I'm sure it must be amazing to go from physics to engineering. because ++=+, --=+, +*-=- and -*+=-, simple math, check the formula). If so, then why am I "envisioning" something somehow doing something? So, when you are thinking about the ideas, think from a mathematical standpoint. Sign up to join this community. is very well expressed and shows you have exceptionally curiosity...that will be valuable if you become a professional physicist. it's defined by its operations and relationships with other numbers. I was under the impression that physics was about explaining the real world. Sometimes things don't align, and intelligence isn't really behind it. Think a little bit like Isaac Newton. You join the subs you like and these appear in your feed (or you can look at each sub individually). If you like physics and want to learn it, and are willing to work hard, you'll succeed. We often reject "phenomenological" models as not being appropriately ground in more foundational theories (so there's clearly an explanatory hierarchy), etc. Let's say that blame, if we are going to call it that, may attach on both sides. 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). Don’t understand PHYSICS QUESTION? The truth is that no one “just understands” physics. Or the concept of an electric field - the book says to envision that a body "somehow modifies the space around it". At my uni the physics courses I took were way harder than the engineering related physics. Two ice skaters, each with a mass of 72.0 kg, are skating at 6.05 m/s when they collide and stick together. I used to forgo that stuff and just be like "I'll just learn the maths", well, that works for quantum mechanics, but for other parts of physics (even stuff like superconductivity) you should have a physical feeling of what's actually going on beyond just algebraic manipulation. I've enjoyed my course more, been less stressed, and in my second year I held a part time Job at an industry leader in town. In physics (and most other courses), everything is built up gradually from the ground up. I didn't get things quickly, and lacked the self discipline to persevere and study it. Vote. In my final year, I realised that the only thing that separated me and the people who could was the amount of work we put in. -/u/fineillmakeausername ~reddit bot Find the magnitude of the downward acceleration of the hollow cylinder. Top Guide of Physics Reddit The Truth About Physics Reddit. Why does Δ(BA) = AΔ(B) when A is constant? Search engine: XenForo Search; Threadloom Search; Search titles only By: Search Advanced search… Search engine: XenForo Search; Threadloom Search; Search titles only By: Search Advanced… Hi Guest, check out the latest SDN … Edit: Physics was the only class I wasn't able to succeed in. These fields will also demand a lot of work from you but they offer really good returns which keep you motivated. This is the basic building block of WHY everything you observe happens. Some of us don't learn well, and some people don't teach well. Beyond this, though, we don't know why this happens, it just happens and we are able to explain it using math. The degree to which an engineer uses physics varies depending upon the type of engineering and career. This semester I'm taking the electricity & magnetism portion of university physics. Yes...lots of neurons and internal organs. I CAN DO PHYSICS is a channel for Scottish Physics students to view solutions to over 100 questions from SQA Physics past papers. 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. Understanding the answers doesn't matter if you don't understand why they are the answers. This is my personal response to those people. Dumb isn't a useful concept. Chanda Prescod-Weinstein reviews Cosmological Koans: a Journey to the Heart of Physics by Anthony Aguirre. Engineering is still fairly heavy mathematically though just not as intense as Physics. You should be able to look at Maxwell's equations and get a good feeling for what they mean physically, for example by imagining field lines. When something is negatively charged it literally means it has an excess of electrons, when something is positively charged it means it has a shortage of electrons. I am a freshman in college level physics, studying to become an engineer. 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. Vote. It is not a sudden revelation, but a journey. A quick Google Search ought to pull it up no problem. You think that if you're not smart enough for maths and physics you can still be a good engineer ? The koans are of his own imagination, so they don’t function as a nonsensical alternative history of physics. If I realize that I’m just not cut out for the heavy physics/math in a physics degree, what are other degrees somewhat related to physics do you think i should pursue? I can understand Calculus II but damn physics just doesn’t like my brain and vice versa. Don’t get me wrong, I work hard for physics but I just can’t grasp concepts as quickly as I can with math. 20964; Activity: 100%. I sometimes scroll through popular to discover new subs. With something like physics, the ONLY thing that matters for most people is self-discipline. I can understand Calculus II but damn physics just doesn’t like my brain and vice versa. Because the phrase connects research, teaching, and learning, it seemed the right approach for the talk I gave to the AAPT on receiving the 2013 J.D. Quora asked: Who is the smartest human being that's ever lived? Eventually you'll have to come to grips with the fact that this is the universe we happen to live in, and the only way to learn about it is through empirical observations. same with charge. And why one uses homogeneous coordinates. For example, just what exactly is a positive and negative charge? Your question "OK, but what is it?" The electric field is a 3 dimensional vector field that has a vector at every point in space. One can probably get away with this in the arts, but not in math or science. When you have more than one charge, then the electric fields combine and you get a superposition of each of the charges' electric fields. OK, but what is it? When explaining all of the "hand-wavey" part. I don't understand physics Thread starter ConfidentIntelect; Start date Feb 1, 2016; Feb 1, 2016 #1 ConfidentIntelect. Don't worry, at first E&M is very difficult, but after a while you get used to it and it becomes more natural. I don't understand physics? DonPedro. Also, you are going to be in a position to decide to contact an idea with the way to translate percentages into the numerical grade point common. In physics, everything just seems so "hand-wavey". What I found was that there were some students who just "got it", and were able to succeed with little effort. Any tips to get better at physics? 145 11. For example, if you are a civil engineer and design bridges, then you will need to understand stresses and forces. The reason there are so many examples of bad engineers is because engineering attracts people who aren't capable of doing the work but want the job security while physics has no such job security. Is there a better way to learn physics? 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. 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