About Kinexia
Kinexia is a free physics learning platform built around one idea: every concept should come with its calculator, its simulation, and its practice — all connected.
## What you will find here
- Concept guides that start with physical intuition before the mathematics
- Step-by-step calculators that show the formula, the substitution and the answer
- Interactive simulations with guided activities, not just knobs
- Worked examples solved the way a good teacher solves them
- Practice problems and quizzes with instant feedback and explanations
- A glossary, formula library, unit and constant references
## Who it is for
High-school and introductory-college students, self-learners, teachers, tutors and parents — anyone who wants physics to finally click.
## Our principles
- Intuition first. Every topic starts with what is actually happening physically.
- No black boxes. Calculators show every step; simulations show their equations and assumptions.
- Honest science. Formulas, constants and worked numbers are checked. When we are unsure, we say so.
- Free forever. No account, no paywall, no login required to learn.
## Corrections
Found a mistake? Our corrections policy explains how we fix errors transparently. See the Corrections page.