Collision Lab - Conservation of Energy | Collisions | Elasticity - PhET Interactive Simulations
Investigate simple collisions in 1D and more complex collisions in 2D. Experiment with the number of balls, masses, and initial conditions. Vary the elasticity and see how the total momentum and kinetic energy change during collisions.
Overview
Added
March 18, 2026
Subject & domain
physics · momentum-collisions
Grade range
Grade 9 (Freshman)–Grade 12 (Senior)
Page kind
Tool
Introduction
Collision Lab Simulation Overview
- Core Topics: Conservation of Energy, Collisions, Elasticity, and Conservation of Momentum.
- Platform Compatibility: HTML5-based simulation compatible with iPads, Chromebooks, PC, Mac, and Linux.
- Accessibility: Includes specific features for accessibility; users are directed to "Accessible Sims" documentation for platform-specific limitations.
- Version: 1.1.22.
- Browser Requirements: Optimized for the latest versions of Chrome, Firefox, Safari, or Edge.
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