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Terms of Use

Last updated: 7 November 2026.

Use of the site

PhysicsLab is provided free for education. You may read, print and share our pages for personal and classroom use, with credit to PhysicsLab. You may not republish our content as your own or sell it.

Accuracy

We check every formula and worked example, but physics is subtle and mistakes happen. Our content is for learning, not for engineering, medical or safety-critical decisions. Always verify critical calculations independently.

Calculators and games

Calculators run in your browser and are provided as-is. Results depend on the numbers you enter. Simulators use simplified models (for example, the pendulum uses the small-angle approximation) and are for illustration, not measurement.

Advertising

Pages may show third-party ads. We are not responsible for the content of those ads or for any site they link to.

Changes

We may update these terms or any page at any time. Continued use of the site means you accept the current terms.