PhysicsLab · Support
If you run into a problem or want to suggest a feature, email us at 250595214@qq.com (we usually reply within one or two business days).
How to use
How do I build my first experiment?
Tap + in the top right and pick one of five ready scenes (gravity + ground, gravity + table, incline + ground, electric field, magnetic field) — the ball and field are placed for you. You can also drag balls, boards, tracks and fields from the tool rail into the canvas.
How do I change an object's properties?
Tap a ball or board on the canvas to open its property panel: mass, velocity, charge, radius and friction are all editable, and the drawing updates as you type.
How do I set conditions and graphs?
Tap Conditions at the bottom, choose an object and open the Graph / Condition page. Draw the v-t curve with a line, a parabola or an equation, then switch to the Condition tab to check the start and end points; both tabs share the same data.
How does step-by-step running work?
Tap Start to run. The top bar hides while it runs; pause to inspect the trajectory and time, then End Step records this step's end time so you can set up the next one.
Why does the layout change on a foldable or iPad?
The layout follows the window size: on an unfolded Duo the tool rail moves into the right status strip and the canvas fills the width. iPad and iPhone work in both orientations with no manual setting.
FAQ
Is PhysicsLab free?
Do I need an account?
Which devices are supported?
Does it upload my data?
Contact us
Found a problem or have a feature request? Email 250595214@qq.com. Please include your phone model, system version and app version and the steps you took — we usually reply within one or two business days.
You can find the app version on its App Store page or in the app’s settings.