A laboratory notebook for classical mechanics, waves and thermal quantities. Ideal models, explicit units, useful answers.
A useful answer should show its working
MOTION / LAB is a focused reference collection for physics. The aim is to shorten the distance between a practical question and a calculation you can inspect. Each tool keeps its inputs, units, formula and example together, with a linked explanation when you want to understand the method.
There are fifty calculators in this edition and thirty illustrated guides. The guides use calculated examples and original data plots rather than invented case studies or customer claims. You can read the pages freely, and the calculation happens in your own browser.
What we value
- Visible assumptions. A number is more useful when its scope is clear.
- Consistent units. Labels stay beside the quantities they describe.
- Practical control. Change the inputs, reset the example and compare results without signing in.
- Honest presentation. This collection does not claim professional credentials, a physical office or a named review team that has not been supplied.
Built for the way this subject works
Choose a system boundary and a positive direction before entering measured values. Introductory equations deliberately leave out some real-world effects. If the setup has changing acceleration, drag, losses or nonuniform properties, first decide whether the simplified model is a useful approximation.
About this edition
The website content and calculator implementation were prepared with AI assistance. Formula examples and interaction checks are documented with the downloadable source. This is an independent collection, not an official service of the organizations linked as references. It does not claim that every article has received a professional subject-matter review.
Ownership and correspondence
MOTION / LAB website operator is the publishing identity shown in this edition. A personal name, company registration, address or professional qualification is not invented here.
Use the contact page to prepare a correction report or question. The offline edition explains whether an inbox has been connected before offering an email action. Our editorial policy describes the information useful in a correction report.