Quick Answer:The Newton’s 1st Law Model is a ball-and-card inertia demonstrator with a steel ball, a spring-steel leaf release and a pedestal on a weighted, non-slip base, showing that a body at rest stays at rest when its support is snapped away.
Last updated: 18 October 2026
Key Features
Inertia demonstrator of the ball-and-card type.
Steel or chrome-plated ball.
High-tension spring-steel leaf release.
High-impact ABS or reinforced polyamide construction.
Weighted base with non-slip rubber feet.
Technical Specifications
Specification
Value
Type
Inertia demonstrator (ball and card or falling weight)
Material
High-impact ABS or reinforced polyamide
Ball
Steel or chrome-plated
Release
Spring-steel leaf or low-friction pedestal
Base
Weighted, non-slip rubber feet
How It Is Used
A card is laid on the pedestal with the ball resting on top. The spring-steel leaf is pulled back and released, flicking the card away sideways, and the ball, which does not share the card's sudden motion, drops onto the pedestal. The result illustrates inertia and Newton's first law.
Frequently Asked Questions
What does the Newton’s 1st Law Model demonstrate?
Inertia: an object resists any change in its state of motion. When the support under the steel ball is struck away quickly, the ball stays where it was and drops instead of moving off sideways.
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