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TM 400 Hooke’s law



  • Elastic behaviour of tension springs under load


Technical Description

Hooke’s law describes the elastic behaviour of components where deformation is proportional to the load acting upon them. This behaviour is typical for metals under light loads.

TM 400 demonstrates the application of Hooke's law and shows the deformation of tension springs under load. For this purpose, a spring is suspended from a stand and loaded. The elongation is read-off directly from a scale. As a linear relationship is shown between the active force and the elongation of the spring, Hooke’s law can be applied.

Learning Objectives / Experiments

- investigation of the proportionality of the active force and the spring deflection
- determination of the spring constant 
- series configuration of two tension springs
- investigation of the influence of the spring constant on the frequency of a spring-mass system


[1] experiments relating to Hooke's law and oscillation experiments on a spring-mass system
[2] metal stand with integral scale
[3] 2 helical spring as tension springs
[4] tension springs configured in series or singly
[5] load applied to tension spring by loads
[6] storage system to house the components

Technical Data
Helical spring short
 coils: 53
- d=18,3mm
- wire diameter: d=1,0mm
Helical spring long
- coils: 109
- d=18,3mm
- wire diameter: d=1,0mm
Scale, graduations: 1mm
- 1x 1N (hanger)
- 10x 0,5N

Dimensions and Weight

LxWxH: 250x250x900mm
Weight: approx. 5kg
LxWxH: 1170x480x178mm (storage system)
Weight: approx. 12kg (storage system)

Scope of Delivery
1 stand
2 helical springs 
1 set of loads
1 storage system with foam inlay
1 set of instructional material

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