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Stretching

In this worksheet, students will learn how things stretch.

'Stretching' worksheet

Key stage:  KS 3

Curriculum topic:   Physics: Motion and Forces

Curriculum subtopic:   Forces

Difficulty level:  

Worksheet Overview

This is a force meter. It is used to measure forces. The spring inside it stretches when pulled and there is a scale in Newton that shows the force applied to it. Springs are elastic, because they go back to their original shape after being stretched.

 

 

When you first hang something on a force meter, the forces are unbalanced, so it begins to stretch. As it stretches, it produces a bigger force pulling the object towards itself until the forces are balanced and the stretching stops. Then you can see the weight of the object.

 

Robert Hooke was a famous British scientist whose work led to the invention of the force meter. The unit of the force though, Newton, was named after his rival scientist Isaac Newton!

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