Quick Answer:The Newton’s Cradle Model has five polished chrome steel balls, matched in mass to ±0.1g, on bifilar nylon suspensions from a plated frame, for demonstrating conservation of momentum and kinetic energy in collisions.
Last updated: 18 October 2026
Key Features
Five high-density polished chrome steel balls.
Balls matched in mass to ±0.1g.
Bifilar high-tensile nylon suspension with anti-tangle design.
Chrome-plated steel or anodised alloy frame.
Weighted, non-slip timber or composite base.
Technical Specifications
Specification
Value
Balls
5, polished chrome steel
Mass matching
±0.1g
Suspension
Bifilar high-tensile nylon, anti-tangle
Frame
Chrome-plated steel or anodised alloy
Base
Weighted, non-slip (timber or composite)
How It Is Used
One ball is pulled aside and released; it stops on impact and the ball at the far end swings out. The two-thread suspension keeps each ball swinging in one plane, so the collisions stay head-on and the demonstration of conserved momentum and kinetic energy is clean and repeatable.
Frequently Asked Questions
Why does the Newton’s Cradle Model use bifilar suspension?
Each ball hangs on two nylon filaments, which keeps it swinging in a single plane. The balls therefore stay in line and strike each other head-on.
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