Radio Waves & Electromagnetic Fields - Radio Waves - PhET Interactive Simulations
Broadcast radio waves from KPhET. Wiggle the transmitter electron manually or have it oscillate automatically. Display the field as a curve or vectors. The strip chart shows the electron positions at the transmitter and at the receiver.
Overview
Added
March 18, 2026
Subject & domain
physics · ac-circuits-electromagnetic-waves
Grade range
Grade 9 (Freshman)–Grade 12 (Senior)
Page kind
Tool
Introduction
Radio Waves Simulation Overview
- Simulation Purpose: Visualizes the behavior and propagation of broadcast radio waves.
- Interactive Controls: Users can manually wiggle a transmitter electron or set it to oscillate automatically.
- Visualization Options: The electromagnetic field can be displayed as either a continuous curve or as individual vectors.
- Data Tracking: A strip chart feature allows users to monitor and compare the electron positions at both the transmitter and the receiver.
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