Pocket Professor
Physics
Type a problem the way you would write it, 12 kg × 9.80 m/s², and get 118 N, with the units cancelling and every step shown. A full two-semester college course comes with it.
iPhone and Android apps: App Store and Google Play links are coming soon.
What's inside
Everything for the course, in one app.
Learn
117 short lessons, from units and motion to optics and modern physics, plus a calculus-based course.
Calculate with units
Units multiply, cancel and convert for you, and adding meters to seconds gets caught.
Solve from what you know
Type the values, tap what you want, and see the equation, the rearranged formula, the numbers and the answer.
Draw it
Free-body diagrams, motion graphs, vectors tip to tail, projectile paths, circuits and lens ray diagrams.
Play with it
9 simulation labs: a cart with live graphs, friction, projectiles, an energy skate park, collisions, orbits, springs, waves and electric fields.
Practice
Problems with hints and full worked solutions. Answers are checked with or without units.
Tutor mode
Hides the answer until you have tried, then shows the steps one at a time.
For instructors
Build a problem set and share it as a link or QR code. Every student gets the same problems and a score they can send back to you.
Three levels
Start with Intro. Go as far as your course does.
IntroIncluded
Measurement, motion in one and two dimensions, and forces: 26 lessons, the Units calculator, free-body diagrams, motion graphs, three labs and practice.
General
The full two-semester course from circular motion to modern physics, the calculus-based course, six more labs, and the Calculus and Lab tools.
Professional
Uncertainty propagation for any formula with an error budget, and statistics for repeated measurements.
Try Physics now.
It opens in your browser in a few seconds. Nothing to install, no account needed.