Wheel And Axle Apparatus
The model demonstrates the conditions of equilibrium on a differential pulley block. Three anodised aluminium pulleys of different diameter are fitted to a shaft mounted on ball bearings. The forces act, on the one hand, directly on the peripheral of the largest pulley, on the other hand, via a loose pulley on two smaller pulleys. Easy to interchange weights permit the load to be varied such that equilibrium is obtained. The model is intended for wall mounting.
Learning Objectives / Experiments
– Equilibrium of forces
– Equilibrium of moments
– Relationship between force reduction and cord travel
Specification
[1] Experiment on the equilibrium of forces and moments on a differential pulley block
[2] 3 pulleys made of anodised aluminium
[3] 2 sets of weights
[4] Ball bearing mounted steel shaft
[5] Anodized aluminum base plate
Technical Data
Pulley diameter
– D=250mm
– D=100mm
– D=50mm
Loose pulley
– D=75mm
Set of weights:
– 2x 1N (hanger)
– 4x 0.5N
– 4x 1N
– 4x 2N
– 4x 5N
Base plate
– wxh: 300x250mm
– hole spacing: 280x230mm, D=10mm
Dimensions and Weight
l x w x h: 300 x 280 x 250 mm
Weight: approx. 15 kg
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