There are different ways to investigate the relationship between force and extension for a spring. In this required practical activity, it is important to:
Hooke's law states that the extension of a spring is directly proportional to the force applied, provided that the elastic limit is not exceeded. The aim of the experiment is to investigate the relationship between a force and the extension of a spring, and see if the spring obeys Hooke's law.
|Force (N)||Length (mm)||Extension (mm)|
It is important to keep the ruler vertical. Suggest another way to improve the accuracy of the length measurements.
|Equipment falling off table||Heavy objects falling on feet, eg bruise/fracture||Use a G-clamp to secure the stand|
|Sharp end of spring recoiling if the spring breaks||Damage to eyes and/or cuts to skin||Wear eye protection, use support and gently lower masses whilst loading the spring|
|Masses falling to floor if the spring fails||Heavy objects falling on feet, eg bruise/fracture||Gently lower load onto spring and step back|