Hooke’s Law Apparatus | FortiTestX 05

The FortiTestX 05 Hooke’s Law Apparatus is a freestanding spring-mass experimental unit for verifying Hooke’s Law, determining spring constants, investigating series spring configurations, and studying simple harmonic motion. It is built around a metal stand with a 1000 mm integral scale graduated at 1 mm intervals and is supplied with 12 tension springs across two diameter groups and six wire diameters each, along with a comprehensive calibrated weight set ranging from 0.5 N to 20 N. Manufactured by SCIENTICO, it is suited for strength of materials and mechanical engineering laboratory courses at engineering colleges and polytechnic institutes, and is available for international supply to institutions and distributors.

The FortiTestX 05 Hooke’s Law Apparatus is a freestanding experimental unit designed to investigate the elastic behaviour of tension springs and the dynamics of spring-mass systems. Manufactured by SCIENTICO, this apparatus is intended for use in strength of materials, physics of materials, and mechanical engineering laboratory programmes at engineering colleges, polytechnic institutes, and technical training centres. It supports both static experiments — measuring spring extension under incremental loads — and dynamic experiments involving the oscillation frequency of a spring-mass system, making it one of the more versatile single-spring laboratory units in the FortiTestX series.


Product Overview

Hooke’s Law defines the elastic behaviour of materials and mechanical components under load. It states that within the elastic limit of a body, the extension produced is directly proportional to the applied load. This principle underpins the design of springs used across engineering applications — from precision instruments and weighing systems to vibration isolation and energy storage mechanisms.

The FortiTestX 05 consists of a helical tension spring suspended from a metal stand fitted with an integral millimetre-graduated scale of 1000 mm length. The free end of the spring carries a hanger and a pointer. As calibrated weights are added to the hanger, the spring extends and the pointer indicates the corresponding extension directly on the scale. This direct-reading configuration eliminates the need for secondary measurement instruments for basic load-extension experiments.

The apparatus supports four distinct experimental configurations. In the first, a single spring is loaded incrementally and the extension is recorded at each load step to verify the linear relationship between force and elongation. In the second, two tension springs are connected in series, and the combined system stiffness is measured and compared against the theoretical prediction. In the third, the spring constant is determined numerically from the load-extension data. In the fourth, a mass is suspended from the spring and set into oscillation, allowing students to investigate how the spring constant influences the natural frequency of the spring-mass system — an introduction to simple harmonic motion.

Twelve helical tension springs are supplied across two outer diameter groups, each available in six wire diameters, enabling a systematic study of the effect of wire diameter on spring stiffness within a controlled experimental setting.

Parameter Details
Model FortiTestX 05
Unit Type Freestanding metal stand with integral scale
Scale Length 1000 mm
Scale Graduations 1 mm
Helical Tension Springs — Small Outer diameter 15 mm; 6 different wire diameters
Helical Tension Springs — Large Outer diameter 20 mm; 6 different wire diameters
Total Springs Supplied 12
Calibrated Weights Supplied 1 x 1 N hanger, 1 x 20 N, 4 x 10 N, 4 x 5 N, 5 x 1 N, 5 x 0.5 N
Scope of Delivery 1 experimental module, 1 set of springs, 1 set of weights, 1 instruction manual

Key Features

  • Freestanding metal stand with 1000 mm integral scale for direct extension measurement
  • Scale graduated at 1 mm intervals for precise load-extension readings
  • Pointer and hanger assembly on the free end of the spring provides immediate scale readings without secondary instruments
  • Supplied with 12 tension springs across two outer diameter groups and six wire diameters each
  • Supports single spring, series spring configuration, and spring-mass oscillation experiments within the same unit
  • Comprehensive calibrated weight set covers a wide load range from 0.5 N to 20 N increments
  • Suitable for both static Hooke’s Law verification and dynamic simple harmonic motion investigation

Applications

  • Verification of the proportional relationship between applied force and spring extension
  • Determination of spring constant from load-extension data and graphs
  • Study of series spring configuration and calculation of combined system stiffness
  • Comparative investigation of the effect of wire diameter on spring constant
  • Investigation of the influence of spring stiffness on the natural frequency of a spring-mass oscillation system
  • Introduction to simple harmonic motion in the context of mechanical spring systems
  • Graphical analysis of load versus extension for elastic components

Construction and System Design

The apparatus is built around a rigid metal stand that provides a stable vertical mounting surface for the spring and scale assembly. The integral scale runs the full 1000 mm length of the stand and is graduated at 1 mm intervals, providing sufficient resolution for precise extension measurements across the full range of supplied springs and weights. The spring suspension point is fixed at the top of the stand. The hanger and pointer assembly attaches to the free end of the spring and allows interchangeable loading with the supplied weight set. The series configuration is achieved by connecting two springs end to end using the supplied hanger, with the pointer positioned at the lower spring’s free end. Springs are interchangeable across all experimental configurations without modification to the stand or scale assembly.


Export and Supply Capability

SCIENTICO manufactures and supplies the FortiTestX 05 Hooke’s Law Apparatus to engineering institutions and laboratory equipment distributors internationally. The unit is packaged for safe transit and is suitable for supply to universities, technical colleges, and vocational training institutes across export markets. Customization of the spring set or weight configuration is available upon inquiry.

1. What experiments can be performed with the FortiTestX 05 Hooke’s Law Apparatus?
The apparatus supports four primary experiments: verification of the proportional relationship between applied force and spring extension, determination of the spring constant, investigation of series spring configuration and combined stiffness, and study of the influence of spring constant on the oscillation frequency of a spring-mass system.

2. How many springs are supplied and what are their dimensions?
Twelve helical tension springs are supplied in two outer diameter groups — 15 mm and 20 mm — each available in six different wire diameters. This range allows systematic comparison of spring stiffness across varying wire diameters within a controlled experimental setup.

3. What is the measurement range and resolution of the integral scale?
The integral scale has a total length of 1000 mm and is graduated at 1 mm intervals, providing sufficient range and resolution for all load-extension measurements within the supplied weight set.

4. How is the series spring configuration set up on the FortiTestX 05?
Two tension springs are connected end to end using the supplied hanger assembly. The pointer is positioned at the free end of the lower spring. Calibrated weights are then applied in the same manner as for a single spring, and the combined extension is read directly from the scale.

5. Can the FortiTestX 05 be used for simple harmonic motion experiments?
Yes. A mass can be suspended from the spring and displaced vertically to initiate oscillation. The frequency of oscillation can be measured and compared against the theoretical prediction based on the spring constant and suspended mass, providing an experimental introduction to simple harmonic motion.

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