Read live data from a physical (or demo) Smart Cart.

Disconnected

Force— N

Accel— m/s²

Velocity— m/s

Pos X— m

Angle—°

RPM— rpm

Recording

Guided AP Labs

Pick a lab to load its graphs here in the Cart Reader. Connect a cart (or use Demo data), vary the known variable across trials, fit a line of best fit, and solve for the hidden unknown.

Graphs

Saved Runs0

📊 How to graph this in Google Sheets

Press ↗ Send to Google Sheets — the run is copied to your clipboard as a table and a new sheet opens (or set an Apps Script URL in Tweaks to push automatically).
Click cell A1 and paste (Ctrl/⌘+V). Every measurement lands in its own column with headers in row 1 — don't paste into a random cell or the columns shift.
Select the two columns you want (click the first column letter, then Ctrl/⌘-click the second) → Insert → Chart, and set Chart type to Scatter.
Best-fit line: in the Chart editor open Customize → Series and tick Trendline (Type: Linear).
Set the trendline's Label to Use equation and tick Show R² — the slope in the equation is the value your lab asks for, and R² close to 1 means a good fit.

📈

No graphs yet

Tick a measurement on the left to plot it. Then Connect your cart (or hit Demo data) and press Start Recording.

Settings

Appearance

Accent color

Applies to every Pickle Labs page on this device.

Measurement units

Changes how lengths, positions and speeds are shown in the Lab Simulator and live readings. The physics is unchanged.

Layout

Student helpers

How the Smart Cart works

⚖ Calibrate Force

Live reading — N

factor 1.0000 · sign +

1. Remove everything from the hook/plunger and press Zero.

2. Hang a known mass, enter its value, and let the reading settle.

3. Press Calibrate — then verify with a second, different mass.

Known mass grams

Saved in this browser — applies to live chips, graphs, and CSV exports.

⚙ Export settings

Time interval Keeps the sample closest to each interval — fewer rows, easier to read.

Rounding

Saved as your preset in this browser — every CSV download and Sheets export uses these settings until you change them.

Lab

Worksheet