Variable Inertia Bar (AVI-MC-1134)

It is to demonstrate to students that the torque necessary to accelerate a flywheel depends on its moment of Inertia rather than its mass. A steel bar 12 mm dia x 785 mm long is mounted at its centre on a sleeved spindle. The spindle is extended through a sleeve so that ; bar may be rotated by means of a weight and string. Heavy adjustable bobs are mounted on each end of the bar and may be clamped at desired position enabling the inertia of the system to be varied as required.

Force Disc (AVI-MC-1135)

Metallic, consists of three wheels of dia 30, 60 and 120. Having one axle in the middle. The complete set mounted on a rod fitted to a tripod base. Supplied with slotted weight sets and a thread roll.

Atwood Machine (AVI-MC-1136)

Consists of a full length metal upright 245cm long graduated in cms, to be mounted vertically near a wall by means of two brackets. A light weight accurate frictionless wheel of 10cm dia is mounted on it's top. Three adjustable clamps move along the rod. Upper carrying a ring and lower carrying a platform and the third is equipped with electric release system. The unit is all metallic and complete with two sets of falling weights and rider weight.

Simple Pendulum (AVI-MC-1137)

Steel spheres with hook for suspension.
Dia (a) 13 mm (b) 19 mm (c) 25 mm

Simple Pendulum Lead (AVI-MC-1138)

Solid lead sphere with a small ring.
Dia (a) 13 mm (b) 19 mm (c) 25 mm

Simple Pendulum Brass (AVI-MC-1139)

Brass sphere with a small ring for suspension.
Dia (a) 13 mm (b) 19 mm (c) 25 mm

Mounted Pendulum (AVI-MC-1140)

For experiments on inertia system, investigating Newton's third law. It comprises a circular wooden base, carrying a bifilar pendulum on a frame.

Compound Pendulum (AVI-MC-1141)

This pendulum is used to investigate the relationship between the period of oscillation of a rigid bar pendulum and the distance of its suspension point from its centre of mass. It comprises a steel rectangular bar 1 meter long, drilled at 50 mm intervals. A removable steel knife edge, mounted perpendicularly, a wall bracket is provided for suspension.