The Inertia In Rotational Motion Apparatus ProDynami - 1204 enables experiments on rotational motion using a rotating rod and ball bearing mounted drum. This Inertia In Rotational Motion Apparatus allows weights to be fitted at marked distances to form a dumbbell-shaped arrangement, with recalculable inertia properties. It includes solid and hollow test cylinders for comparing moments of inertia. The system is accelerated by a weight and cord, with fall time measured using a stopwatch.

Inertia In Rotational Motion Apparatus ProDynami - 1204, Technical Specifications
| Specification | Detail |
|---|---|
| Purpose | Student experiments on moments of inertia, comparison of the inertia of rotation of various bodies |
| Rotating Bar | Metal rotating bar, weights with knurled bolts for quick fastening |
| Test Cylinders | Solid and hollow test cylinders |
| Rotating Drum | Ball bearing mounted rotating drum, anodised aluminium |
| System Acceleration | Acceleration of system by weight attached to the drum |
Technical Data
Rotating Rod
| Parameter | Value |
|---|---|
| Length | 550mm |
| Diameter | D=10mm |
Weights
| Parameter | Value |
|---|---|
| Weight Set | 100g, 200g, 400g |
Solid Cylinder
| Parameter | Value |
|---|---|
| Diameter | D=120mm |
| Inner Diameter | d=110mm |
| Mass | 900g |
Hollow Cylinder
| Parameter | Value |
|---|---|
| Outer Diameter | D=120mm |
| Mass | 0.9kg |
Weight (hanger)
| Parameter | Value |
|---|---|
| 1N | x 2 |
| 2N | x 4 |
| 5N | x 4 |
| 0.5N | x 1 (hanger) |
Key Features
Experiments
Construction and Design
The Inertia In Rotational Motion Apparatus ProDynami - 1204 is built around a metal rotating rod, 550mm long with a diameter of 10mm. Weights are fitted to the rod using knurled bolts for quick fastening. A dumbbell-shaped arrangement is formed once weights are attached at marked distances from the centre. The rod arrangement is fitted to a ball bearing mounted rotating drum made of anodised aluminium. Solid and hollow test cylinders are included for comparison experiments. The system is accelerated by a metal weight attached to a cord wrapped around the drum. The apparatus is set up quickly using wall mounted stands. This Inertia In Rotational Motion Apparatus is designed for low friction, accurate rotational motion measurement.
Scope of Delivery
Q: What is the Inertia In Rotational Motion Apparatus ProDynami - 1204 used for?
A: It is used to perform experiments on rotational motion, including determining the moment of inertia of various bodies.
Q: How is the moment of inertia measured with this apparatus?
A: A metal weight attached to a cord wrapped around the drum accelerates the system. The time taken for the weight to fall is measured using a stopwatch, from which the moment of inertia is determined.
Q: What test cylinders are included?
A: The apparatus includes a solid cylinder (D=120mm, d=110mm, mass 900g) and a hollow cylinder (outer diameter D=120mm, mass 0.9kg) for comparing moments of inertia.
Q: What weights are provided with the rotating rod?
A: Weights of 100g, 200g, and 400g are provided for fitting to the rotating rod at marked distances from the centre.
Q: Does the scope of delivery include a stopwatch?
A: Yes, the scope of delivery includes 1 stop watch, 1 thread, and 1 set of weights along with the experimental unit and instruction manual.