About Physics Fundamentals: Our Mission
We believe physics is one of the most beautiful and useful subjects ever discovered — and one of the worst taught. Students arrive at university having memorized equations they can't intuitively justify, then leave hating a subject they never really understood.
PhysicsFundamentalsInfo exists to change that. We write physics explanations the way a great tutor would explain them in person: starting with the physical intuition, then introducing the mathematics, then practicing with real problems until it clicks. Every article ends with worked problems because you cannot learn physics passively. You learn by doing.
Our Approach
Intuition first
Every topic opens with the real-world phenomenon — what's actually happening, why it matters, where you encounter it. Equations come after the picture is clear in your mind.
Worked problems on every page
We don't just state formulas. Every article includes five to eight problems solved step-by-step, showing exactly how to apply what you've learned.
Interactive over passive
Our labs let you manipulate variables and watch the physics respond. Reading about projectile motion is one thing; launching a thousand projectiles is another.
Honest depth
We don't dumb things down to chase clicks. If a topic genuinely requires calculus to understand, we say so — and we teach the minimum you need.
Who We Are
PhysicsFundamentalsInfo is built by a small team of physics educators and writers committed to making science clearer for everyone. Our authors come from research backgrounds in mechanics, electromagnetism, thermodynamics, and modern physics, with combined teaching experience across universities and online platforms.
You can meet the authors who write for us. We're a young site, growing carefully — every article we publish goes through review before it goes live. We'd rather publish ten exceptional articles a year than a hundred mediocre ones.
What We Do
Every topic on this site gets three things, not one. A written explainer that starts from the physical picture and only then reaches for the algebra. An interactive lab you can run in the browser, where moving a slider redraws the diagram and recomputes every readout from the governing equation. And a calculator that solves the same formula in any direction and shows the substitution line by line. Read it, play with it, then check your own numbers against it — that is the whole method.
Alongside those we keep the reference material that saves you hunting: a physics glossary, formula sheets and study plans, and worked practice problems. Everything is free, nothing needs an account, and the whole site is listed on the sitemap.
Why You Can Trust Physics Fundamentals
Physics is unusually easy to check and unusually unforgiving when you get it wrong, so we treat accuracy as the product. Every formula, constant and worked solution is verified against standard references — NIST and CODATA for physical constants, and the standard undergraduate texts (Halliday, Resnick & Walker; Young & Freedman; Serway & Jewett) for derivations — and each page names the source it was checked against in its references block.
Nothing is published until it has been through research, writing, fact-checking, technical review and sign-off; the calculators and labs are additionally tested against known values and their edge cases. We take no payment for coverage or links, so a tool is only recommended here because we use it. When an error is reported we fix it and re-date the page rather than quietly patching it. The full process is written up in our editorial guidelines.
The Sources We Build On
We are not the primary source for any of this, and we do not pretend to be. Where a number or a derivation comes from somewhere authoritative, we say so and link out:
- NIST & CODATA — the internationally agreed values of the physical constants.
- HyperPhysics, Georgia State University — concept maps and derivations.
- MIT OpenCourseWare — full undergraduate physics courses, free.
- OpenStax — open-licence university physics textbooks.
Our Story
January 2026
The Idea
After years of watching students struggle with poorly-explained physics, we decided to build the resource we wished existed when we were learning. The first article (Newton's Laws) took six weeks to write.
March 2026
Launch
Site goes live with twelve articles across mechanics and thermodynamics. The first interactive lab — projectile motion — is published a week later.
Today
Building the Library
We're publishing one new article every week, expanding the lab to cover more concepts, and growing a community of curious readers. Join the dispatch to follow along.
What's Next
Our 2026-2027 roadmap includes: complete coverage of all classical physics fundamentals (we're about 30% there), interactive labs for every major concept, downloadable formula sheets for exam preparation, a comprehensive glossary, and eventually video walkthroughs of the hardest worked problems.
Have a topic you wish we'd cover? Found an error in an article? Write to us — we genuinely read every message.
