Each group needs:

• LEGO MINDSTORMS EV3 robot, such as EV3 Core Set (5003400) at https://education.lego.com/en-us/products/lego-mindstorms-education-ev3-core-set/5003400#lego-mindstorms-education-ev3
• LEGO MINDSTORMS Education EV3 Software 1.2.1, free online, you have to register a LEGO account first; at https://www.lego.com/en-us/mindstorms/downloads/download-software
• computer loaded with EV3 1.2.1 software 
• LEGO MINDSTORMS EV3 color sensor, included in the core set listed above
• 2 LEGO MINDSTORMS EV3 intelligent bricks; one is included in the core set listed above; additional bricks are available at https://shop.lego.com/en-US/EV3-Intelligent-Brick-45500
• calculator
• ruler
• electrical tape, such as white or orange, not black; two pieces, each about 3 inches long.
• Angular Velocity Worksheet, one per student
• (optional) Example Experimental Setup Visual Aid (same image as Figure 1), suitable for an overhead projector transparency

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 robot, such as the NXT Base Set
• computer loaded with NXT 2.1 software