This is an interactive simulation created to help beginners differentiate velocity and acceleration vectors. The user can move a ball with the mouse or let the simulation move the ball in four modes of motion (two types of linear, simple harmonic, and circular). Two vectors are displayed -- one green and one blue. As the motion of the ball changes, the vectors also change. Which color represents velocity and which acceleration? Editor's Note: This simulation was designed with improvements based on research of student interaction with the PhET resource "Ladybug Revolution". The authors added two new features for the beginning learner: linear acceleration and harmonic motion. This item is part of a larger and growing collection of resources developed by the Physics Education Technology project (PhET), each designed to implement principles of physics education research.


  • Mathematics > General

Education Levels:

  • Grade 1
  • Grade 6
  • Grade 8
  • Grade 9


Motion in Two Dimensions,NSDL,2D Velocity,Undergraduate (Lower Division),simple harmonic motion,Mathematics,Classical Mechanics,acceleration,two-dimensional motion,oai:nsdl.org:2200/20081106025941358T,Informal Education,Higher Education,Middle School,2D Acceleration,Physics,circular motion,vectors,motion,High School,NSDL_SetSpec_439869,Vocational/Professional Development Education,velocity,Technology



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