For K-12 Students · Electrostatics
Electrostatics for a pendulum clock
Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a pendulum clock live below — adjust the inputs and watch it respond, right in your browser.
Electromagnetics — Electrostatics StudioLive
superposition · potential + field lines
Controls
Click to place a charge, or drag one to move it. Red = potential from +, blue = −. White lines are the electric field.
Data Inspector
Charges2
Net charge0
MethodSuperposition
Governing equation
Reading this result: The potential at any point is the superposition of every charge's k·q/r term, so overlapping fields simply add. Field lines run from high potential to low — out of + charges and into − charges — always crossing the equipotentials at right angles.
Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.
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Frequently asked questions
- Is this good for k-12 students?
- Yes — this version of "Electrostatics for a pendulum clock" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.