Quick Answer: The Torsion Pendulum (Bridge Type) is a suspension apparatus for finding the modulus of rigidity of a wire and moments of inertia. It has a tall U-shaped metal bridge with a split chuck, a machined aluminium disc and chrome-plated iron inertia discs.
Last updated: October 2026
Key Features
Tall U-shaped metal bridge with an integrated split chuck for the wire
Machined aluminium primary disc
Chrome-plated iron inertia discs, 1.25 cm thick
Inertia discs added to the main disc change the oscillation period
Technical Specifications
Specification
Value
Suspension
Tall U-shaped metal bridge with split chuck
Primary disc
Machined aluminium
Inertia discs
Iron, chrome-plated, 1.25 cm thick
HS code
9023.00
About This Product
The disc hangs from the wire held in the bridge chuck and is twisted to set up torsional oscillations. Timing the period with and without the inertia discs gives the rigidity modulus of the wire and lets students calculate or check moments of inertia.
Frequently Asked Questions
What is the bridge used for on this torsion pendulum?
The U-shaped metal bridge carries a split chuck that grips the suspension wire, giving a stable support above the oscillating disc.
