Loading please wait

The smart way to improve grades

Comprehensive & curriculum aligned

Try an activity or get started for free

Friction

In this worksheet, students will learn what friction is and how it affects our lives.

'Friction' worksheet

Key stage:  KS 3

Curriculum topic:   Physics: Motion and Forces

Curriculum subtopic:   Balanced Forces

Difficulty level:  

Worksheet Overview

QUESTION 1 of 10

Friction is a contact force; two objects have to be touching for friction to work. Friction can slow an object down or even make it stop. When we sit on a chair, there is friction between our clothes and the chair, so we do not slide off! There is also friction between our feet and the floor, so we can walk properly without slips and slides.

 

Certain materials produce more friction than others. Rubber, for example, is used in car tyres to stop them sliding off the road. Friction can sometimes be a nuisance though. If there is too much friction in the axles of a bicycle, it is very difficult to ride, so we can use a lubricant, such as oil or grease. This is called lubrication. Skiers wax the bottom of their skis to make them smooth. This reduces friction and allows them to move faster.

 

 

Lubricating bike chain

 

 

Friction always wears things away, e.g. brake pads, car tyres and clothes all wear out the more we use them. Friction also produces heat and sound. A car engine without oil overheats and rusty doors squeak. Air resistance and water resistance are also types of friction in gases and liquids, respectively. To reduce those, smooth surfaces and streamlined or aerodynamic shapes are needed.

---- OR ----

Get started for free so you can track and measure your child's progress on this activity.

What is EdPlace?

We're your National Curriculum aligned online education content provider helping each child succeed in English, maths and science from year 1 to GCSE. With an EdPlace account you’ll be able to track and measure progress, helping each child achieve their best. We build confidence and attainment by personalising each child’s learning at a level that suits them.

Get started
laptop

Try an activity or get started for free

  • educational
  • bettfutures
  • cxa
  • pta
  • era2016
  • BDA award
  • Explore LearningTuition Partner
  • tacm