Extension Springs – Pack of 100 (22 × 15mm) for Demonstrating Hooke’s Law

These Extension Springs (22 × 15mm) are ideal for classroom demonstrations and student experiments exploring Hooke’s Law and the principles of elasticity. Supplied in a convenient pack of 100, they are perfect for physics departments, allowing whole‑class practical work and repeated use across lessons.

Each spring is designed to extend up to 20cm (±) before permanent deformation occurs, making them suitable for safe, repeatable stretching experiments. Their compact size and consistent performance make them a reliable choice for measuring extension under different loads.

Key Features

• Pack of 100 extension springs
• Dimensions: 22 × 15mm
• Extends up to 20cm (±) before deforming
• Ideal for physics and classroom demonstrations
• Durable and consistent for repeated student use

Ideal for School Science Lessons

These springs are specifically suited for KS3–KS5 physics, supporting practical investigations such as:

• Demonstrating Hooke’s Law (force vs extension)
• Exploring elastic and plastic deformation
• Investigating spring constants
• Comparing the behaviour of springs under different forces
• Building simple force meters or model mechanisms

They provide an excellent hands‑on resource for helping students understand foundational concepts in forces, energy storage, and materials science.