1. What is Hooke's Law?

Definition: Hooke's Law states that the force (F) needed to extend or compress a spring by some distance (x) is proportional to that distance.

Purpose: This principle is fundamental in physics and engineering for understanding elastic materials and designing spring-based systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F \) — Force (Newtons, N)
• \( k \) — Spring constant (Newtons per meter, N/m)
• \( x \) — Displacement from equilibrium position (meters, m)

Explanation: The force required to stretch or compress a spring is directly proportional to the displacement and the spring's stiffness (constant).

3. Importance of Hooke's Law

Details: Understanding this relationship is crucial for designing mechanical systems, shock absorbers, measuring instruments, and many engineering applications.

4. Using the Calculator

Tips: Enter the spring constant (stiffness) in N/m and the displacement in meters. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical spring constant value?
A: It varies widely - from 5 N/m for very soft springs to 5000 N/m or more for stiff springs.

Q2: Does Hooke's Law apply to all springs?
A: Only within the elastic limit of the material. Beyond this, the spring may deform permanently.

Q3: What if the displacement is negative?
A: Negative displacement indicates compression rather than extension, but the magnitude is what matters.

Q4: How is spring constant measured?
A: By applying known forces and measuring the resulting displacement (k = F/x).

Q5: Can this be used for non-spring systems?
A: Yes, any system that exhibits linear elastic behavior follows this law.