3" ABS Pulley with 50mm Ball Bearing and Thumbscrew Capacity_150mL Compact-format sonometer designed to study

Compact-format sonometer designed to study the physics of vibrating strings on a footprint smaller than the standard 1-meter teaching unit

airbag electronic control unit

dropping freely through the ring when cool but stopped by the ring once flame heating expands the ball

Mid-length 750mm black insulated 2mm-plug lead with a crocodile clip on the opposite end

3" ABS Pulley with 50mm Ball Bearing and Thumbscrew Capacity_150mL Compact-format sonometer designed to studyABS plastic pulley with a 50mm ball bearing wheel, a thumbscrew clamp for rod attachment, and an 18mm attachment diameter for pulling small weights in mechanical advantage experiments.