When a force acts on a spring it is stretched or compressed, its length will changes by an amount e from its original length.

## Demo

In this tutorial you will learn how to calculate the **force** on a spring given its **extension** and** spring constant**.

**Note-**Some mobile devices may require you to tap full screen during playback to view video content.

The equation for this calculation is written like this:

$F = { \text k \; \text x \; \text e}$

## Chilled practice question

Copy out the question and attempt to calculate the answer before watching the solution. Write down the equation and show all of your working, remember to add the units to your answer, this routine will guarantee you maximum marks in an exam. Mark your solution and correct if needed.

A spring is stretched 0.25 **m**, it has a **spring constant** of 20 **N/m**, calculate the force on the spring.

## Frozen practice question

Copy out the question and attempt to calculate the answer before watching the solution. Write down the equation and show all of your working, remember to add the units to your answer, this routine will guarantee you maximum marks in an exam. Mark your solution and correct if needed..

A **force** of 10 **N** is applied to a spring and it extends by 20 **cm**, calculate its **spring constant**.

## Science in context

When a spring is stretched or compressed, its length will changes by an amount x from its original length, **force** **F = k**e. The **force** the spring exerts is its restoring **force**, it acts to restore the spring to its original length.

## Millie’s Master Methods

#### Millie’s Magic Triangle

The ability to rearrange equations is the first step to successfully solve Physics calculations. Millie’s…

#### Calculation Master Method

Performing and mastering this routine will guarantee you maximum marks when solving Physics calculations. Calculation…

## The Fridge Physics Store

#### Teacher Fast Feedback

Feedback to students in seconds – Voice to label thermal bluetooth technology…

#### Get Fridge Physics Merch

Why not buy a Fridge Physics baseball cap, woollen beanie, hoodie or polo shirt, all colours and sizes available. Free delivery to anywhere in the UK!…