About Physicsway
Physicsway offers free, concise, and easy-to-read notes for introductory college courses. The notes cover algebra-based physics — Physics 1 and Physics 2 — along with the algebra that supports them, and are written to be clear and to the point, with worked examples, figures, and animations.
The site also includes an interactive virtual lab — a simulation of the Newton's second law experiment — and step-by-step Excel tutorials for graphing and data analysis.
PageScan for iPhone
PageScan is a free iPhone app from Physicsway that turns handwritten homework into a clean PDF in three taps. It finds the edges of the page, straightens it, and drops out the shadows, so what you hand in looks like a scan rather than a photo of a desk.
It is built for handwritten work: pencil stays visible, paper comes out white, and the letters stay solid black. Scan as many pages as the assignment needs, name the file, and share it straight to Google Classroom, Canvas, Mail, or Files.
There is no account, no advertising, and no cloud — nothing ever leaves your phone. PageScan does not solve your homework; it only scans it.
Download PageScan on the App Store (free, requires iOS 17 or later) · Privacy policy
Map Star for iPhone and iPad
Map Star is a US states and capitals quiz for children, and the question is asked out loud: “What is the capital of Indiana?” The child answers by speaking, which takes real recall — unlike multiple choice, there is nothing to guess from.
Six ways to play: name a state’s capital, name the state from its capital, from its two-letter abbreviation, or from its nickname; find the state on the map and tap it; or mix the spoken quizzes together. Progress is tracked state by state, and practice sets of ten drill the ones that need work.
Answers are recognized on the device itself, so a child’s voice never leaves the iPhone or iPad. There is no account, no advertising, and nothing is collected. A child who would rather type can tap “Type it” instead.
Map Star on the App Store ($2.99, requires iOS 18 or later) · Support · Privacy policy
YouTube channel
Physicsway also has a companion YouTube channel, @physicsway. Subscribing is a simple way to support the site and contribute to its continued development.
Credits
The website design and development, the figures and animations, and the articles are all the work of R. Justin, Ph.D.
Contact
Questions or comments? Email justin@physicsway.com.
Copyright
All content on this website — including the text, figures, and animations — is the original work of R. Justin, Ph.D., and is protected by copyright. You are welcome to use it free of charge for personal study and classroom teaching, but it may not be redistributed or used for commercial purposes without the author's written permission. For permission requests, email justin@physicsway.com.
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