Fundamentals of Physics Rotational Motion
Investigate the Relationship Between Linear and Angular Velocity
Simple and fun to operate, this student-friendly apparatus consists of a 40cm wide disc, driven underneath by a motorized wheel. The disc’s moveable pegs can be positioned a specific distance from the center, and a support rod allows a photogate to be positioned, reading the frequency of the pegs when placed at different positions on the spinning disc. When the frequency of the pegs are measured at different positions, but at a constant rotation, students will find the angular velocity to be consistent, while the linear velocities are very different. The drive motor can also be adjusted, so it can be positioned either near the center of the disk, causing a faster rotation; or near the edge, causing a slower rotation. Activity guide is included. Requires power supply. Also requires the Photogate System and power supply, available separately.