Inertia Demonstrator – Classic Physics Apparatus for Motion Analysis

The IDEM01 Inertia Demonstrator from United Scientific is a durable, tabletop device designed to illustrate Newton’s First Law of Motion. A steel ball rests atop a thin metal card on a pillar, while a spring-loaded piston mechanism delivers a sharp strike to the card. The card flies out, but the ball remains in place—demonstrating inertia in action. A second experiment allows slow cord pulling, causing both ball and card to fall together. Includes an activity guide for classroom use.

Specifications

• Model: IDEM01
• Dimensions: 5″ × 3″ × 2″
• Base: Aluminum with tethered card for easy recovery
• Ball: Steel
• Mechanism: Spring-loaded piston with catch
• Includes: Activity guide

Features

• Demonstrates inertia and Newton’s First Law
• Reliable performance with spring-loaded strike mechanism
• Compact and durable for repeated classroom use
• Two experiment modes: rapid strike and slow pull

Applications

• Physics education and motion demonstrations
• STEM classrooms and science fairs
• Hands-on learning of force and inertia principles