Materials List: Angular Velocity:
Sweet Wheels

Each group needs:

Note: This activity can also be conducted with the older (and no longer sold) LEGO MINDSTORMS NXT set instead of EV3; see below for those supplies:

  • LEGO MINDSTORMS NXT Base Set; from this set, the following items are used: the NXT intelligent brick, 1 touch sensor, 2 cables to connect the motors to the brick, wheels of different sizes, and additional LEGO parts
  • computer loaded with the NXT 2.1 software

To share with the entire class:

  • painter's tape, for marking distances on the ground
  • yard or meter stick
  • LEGO MINDSTORMS Education EV3 Software 1.2.1, free online, you have to register a LEGO account first; at; the software is required to download the attached rbt program to the EV3 brick
  • computer, loaded with EV3 1.2.1 software

Note: As an alternative to the LEGO EV3 robot, many other viable alternative robot kits exist that allow you to vary the speed of the motor that controls the wheels. For example: LEGO MINDSTORMS EV2, Parallax Boe-Bot Robot. See the Additional Multimedia Support section for details and links.