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Arbor Scientific Rotational Inertia Demonstrator, Observe Torque, Inertia, and Angular Acceleration,10.75 x 19 x 19 in, Includes Free Teacher’s Guide

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$280.00

$ 99 .00 $99.00

In Stock
  • Teacher collaboration - solid, durable, and built to engage students
  • Versatile experimentation - move the rope to a pulley of a different radius to measure torque or adjust the mass to alter the moment of inertia
  • Easy set-up - whether as a demo or in groups, it easily attaches to a ring stand or the edge of a lab table
  • Included - teacher instructional guide, Ring Stand not included
  • Customer Oriented Service - All products are provided with teachers in mind, we will provide swift customer service if anything is needed.


A beautiful and engaging investigation of angular motion! Observe the angular acceleration of the apparatus, and investigate the effects of changes in torque and inertia. Simply move the rope to a pulley of a different radius to change the torque, or move the mass on the arm to change the moment of inertia. Qualitative observations are a snap, and students can easily see the dramatic effects of their adjustments. The apparatus also lends itself to accurate quantitative experimentation, with two ways of finding the moment of inertia: theoretically, according to the component masses and their dimensions, and experimentally, by measuring the angular acceleration for a given torque. Included is a rotating hub, 4 threaded rods, 4 weights with set screw, a 90-degree clamp, a wrench, low-density PTFE thread seal tape, and no-stretch pulley string. Please Note: Ring Stand not included.