r/learnphysics

Does anyone have a self-study roadmap for physics

Hi so I'm a a business major out of practicality but | really like solving math problems for fun and I'm also really interested in Physics and I wonder if there's a roadmap to get from where I am now to being able to understand computational physics.

For context: I know basic trig but will be getting into calculus 1 soon.

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u/puzzled_catt — 15 hours ago

Real-time three-body gravity simulation (interactive, mobile)

Made an interactive simulation of the actual three-body problem in physics — three masses under mutual gravity, no simplifications. You can adjust masses and initial velocities and watch how small changes send the system from a stable-looking orbit into full chaos.

It's built to feel more like a physics toy than an app — no ads breaking up the simulation, nothing to unlock. Mostly wanted an excuse to actually play with the equations rather than just read about them.

Free on Google Play if anyone wants to mess with it: https://play.google.com/store/apps/details?id=com.mathematicalzen.threebody

u/IllPsychology7214 — 1 day ago

Looking for physics tutor (free)

Just shooting my shot here. I'd adjust to a time you choose l, and it doesnt even have to be proffesional and all that, just simple explanations if you want. I'm just in need of someone who can walk me through. 11th grade physics cause I am flunking BAD.

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u/BleckKoffeeisk8 — 2 days ago
▲ 3 r/learnphysics+1 crossposts

Looking for a study partner to learn physics from scratch

Hey! I'm from Uzbekistan and I'm looking for someone who wants to learn physics with me from basically zero and build a solid foundation together.

I'm preparing for university and I don't want to just memorize formulas for exams. I want to actually understand physics and eventually get to a university-level understanding.

I already have a structured study plan. I've organized all the topics in Obsidian, and I'm planning to work through three textbooks:

1)Conceptual Physics - Paul Hewitt

2)Physics: Principles with Applications - Douglas C. Giancoli

3)College Physics

The idea is to go through the topics systematically, starting from the fundamentals and gradually getting harder.

I'm looking for someone who would actually study alongside me, not someone who just wants to occasionally exchange questions.

We could study the same topics, solve problems together, explain concepts to each other, discuss things we do not understand, compare our solutions, keep track of our progress and occasionally just talk about interesting physics.

You don't need to be good at physics. In fact, I'd prefer someone who's also willing to start from the basics and learn together rather than someone who's already an expert.

I'm from Uzbekistan, but you can be from anywhere. We can figure out a schedule that works across time zones. Discord/Zoom would probably work well.

If you're interested, DM me and tell me a little about your current physics level and what you're hoping to get out of studying physics.

Basically, I'm looking for someone who wants to go through the whole journey with me rather than just find a tutor.

reddit.com
u/JustArifus — 2 days ago
▲ 74 r/learnphysics+3 crossposts

Interactive Electromagnetic Field Visualizer

Made this interactive demo for a class I TA'd in the past. Shows the analytic solution for the E and B fields of a moving point charge. If you swap to 2D mode you can see the field along a single axis (ie the typical wave graphic you see in most textbooks).

alexchoi.me
u/advanced_mate — 5 days ago

What game mechanics involving physics would feel fun and natural in a roguelite, without turning the game into an educational game?

I'm a Physics undergraduate and I'm considering making a physics-based roguelite as my final-year thesis project.

The problem I'm having is that I don't want to make an "educational game" in the traditional sense. I'm not interested in having the player constantly read explanations, solve equations, or pick upgrades like "ΔU = Q − W".

What I'm looking for is something closer to games where the subject naturally exists within the game's mechanics. The player should be having fun first, while learning about the physics almost as a side effect of experimenting with the game.

I'm especially interested in mechanics where Physics creates interesting interactions, strategies, or emergent gameplay.

It also doesn't need to cover a huge amount of Physics. I'd actually prefer focusing on a few concepts that are particularly fun to interact with.

So, if you were playing a roguelite where Physics was one of its core systems, what kind of mechanics would make you think "holy shit, that's fun" rather than "I'm doing homework"?

Any ideas are welcome, even weird ones. I'm mainly trying to brainstorm and find a direction before I start developing anything.

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u/Paulin_Bacana__ — 6 days ago
▲ 76 r/learnphysics+1 crossposts

[Linear Algebra] The Geometric Meaning of the Eigenvalue Problem

This investigates the geometric meaning of the eigenvalue problem for a 3 times 3 operator. Geometrically, the eigenvectors represent invariant directions that undergo no change in orientation under a given linear transformation.

u/TROSE9025 — 9 days ago
▲ 112 r/learnphysics+4 crossposts

Watch Air Pressure in Action With a Helium Balloon

What really happens to a helium balloon after it floats away? 🎈☁️

Greg Wolf recreates a helium balloon’s journey to the edge of space using a vacuum chamber. As the balloon rises through Earth’s atmosphere, the surrounding air pressure drops, allowing the helium gas inside to expand until the balloon reaches its limit and pops! 💥

u/TheMuseumOfScience — 9 days ago

Neet physics ques solving strategy

Hey! I'm such a loser in phy, i watch lectures.. i understand them, I read notes, i solve easy ques but then when everything piles up its v hard for me to manage. Last m sab itna saara lgta hai as if kuch nhi aata. Phy ka part mein 10-11 bubbles hi fill hote h omr me maximum.

Somebody who've actually decoded how to actually solve phy ques in neet paper, please help me out

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u/Fuzzy_Cattle443 — 7 days ago
▲ 5 r/learnphysics+1 crossposts

Advice for learning physics, astrophysics, and cosmology

I only have a high school diploma. I did not take physics. My highest level of math is algebra 2. Now as an adult I am fascinated with cosmology and astrophysics. Can I get some good recommendations on a good physics book?

reddit.com
u/chrispy_world — 8 days ago
▲ 2 r/learnphysics+1 crossposts

From Sound to Light: The Theoretical Physics of Single-Bubble Sonoluminescence (SBSL)

Single-Bubble Sonoluminescence (SBSL) represents one of the most intriguing tabletop demonstrations of extreme energy focusing in physics. By trapping a single microscopic gas bubble in an acoustic standing wave field, the periodic pressure oscillations force the bubble through a violent compression phase, causing it to emit ultra-short flashes of light lasting under 50 picoseconds.

u/convergentepisteme — 7 days ago
▲ 9 r/learnphysics+4 crossposts

The Rotational Equilibrium mistake that ruins IB Physics HL scores (and how to actually visualize it)

Hey everyone, Vaibhav Sir here. After years of teaching IB Physics, I've noticed a massive trap that examiners love to set in the Rigid Body Mechanics (A.4) section.
When you get a problem with multiple forces, multiple objects, and an unknown variable, just memorizing "net force = 0" and "net torque = 0" isn't enough to secure a Level 7. The biggest mistake students make is misidentifying the point of application and failing to visualize how force couples actually rotate a system.
I just put together a complete masterclass breaking down the most challenging rotational equilibrium problems you'll face. Instead of just reading textbook definitions, we go step-by-step through the actual physics:
Balancing non-uniform torque equations without getting lost in the algebra.
The visual trick to never messing up force couples.
Exactly how to set up your hinge force variables so the math naturally works out.
If you want to stop relying on blind memorization and actually understand the mechanics, you can watch the full breakdown here: https://youtu.be/GDtNvt7qQI4?si=pbgYF5ybCO5cBX4a
(Side note: I am also working on uploading complete, question-by-question walkthroughs of original past papers for the channel—no mock papers, only the real ones—so keep an eye out as exam season gets closer).
Drop a comment if you get stuck on a specific step in the video or have any questions about Rigid Body Dynamics. I’m always happy to help clear up the physics!

u/IBphysicsvaibhavsir — 9 days ago
▲ 3 r/learnphysics+2 crossposts

General-relativity open-source book

Hey everyone, I am a 15 year old programmer that is writing an open-source (free) book on general relativity.

About a year ago I got completely obsessed with General Relativity, but I found that a lot of traditional physics textbooks wrap everything in really dense academic jargon. Since my background is in programming, I started writing a book to try and demystify these concepts using logical, step-by-step algorithms and code analogies that made sense to my brain.

It's completely free and open-source. Right now, I've drafted chapters covering everything from the Minkowski metric and Lorentz transformations up to Christoffel symbols and covariant derivatives. I'm also adding a folder of Python scripts using NumPy and SymPy to handle the tensor calculations programmatically.

Since I am learning as I go, I might have made some typos or conceptual mistakes in the math. I would love for some people here to check out the draft and give me some brutal, honest feedback on it!

You can check out the repository and download the PDF draft here:

https://github.com/BioZFrog/General-Relativity-A-Programmer-s-Guide-to-Curved-Spacetime

Thanks!

u/BioZFrog — 13 days ago

Best way of problem solving that leads to mastery in Physics

It's been a few years that I had been facing problems in problem solving in physics. I am a 10th class student, though I like to explore diverse world of physics regularly practicing concepts beyond my class and solving problems based on that. But I am getting burn out on some questions—

  1. What should come in your mind the very first seeing a question.

  2. How to find a good approach to solve the problem.

  3. How to restart after a failure.

  4. How to learn something extraordinary from a question?

  5. How to never forget what I have learnt from it.

I am really hopeful to get a good guide from my seniors.

Thank you in advance :)

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u/Irrevocable_Ink — 11 days ago

Does this help you? I found my old handwritten physics notes.

Found this old physics formula sheet.

Thought I’d share it in case anyone is in their preparation days right now and finds it useful.

Maybe these formulas will save someone a little time while revising.

Good luck with your preparation!

u/Mariyam_8409 — 10 days ago