# Physics Tutorial 1.3 - Significant Figures and their Importance

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There are 4 lessons in this physics tutorial covering Significant Figures and their Importance. The tutorial starts with an introduction to Significant Figures and their Importance and is then followed with a list of the separate lessons, the tutorial is designed to be read in order but you can skip to a specific lesson or return to recover a specific physics lesson as required to build your physics knowledge of Significant Figures and their Importance. you can access all the lessons from this tutorial below.

In addition to the tutorial for Significant Figures and their Importance on this page, you can also access the following Units and Measurements learning resources for Significant Figures and their Importance

In this Physics tutorial, you will learn:

• What are significant figures?
• How to find the number of significant figures in a given numerical value?
• How to round up a number to the required number of significant figures?
• Why are significant figures so important in measurements?

## Introduction

The flying distance from London to Birmingham is about 101 miles (or 163 km). Can we say "101.000 miles or 163.000 km" to be more precise? Why?

The weight of an African bush elephant is about 6000 kg. Can we say, "Elephant's weight is 6000.000 kg" to be more precise? Why?

The dimensions of a door are 194 cm × 87cm. Can we round up the result and say to the carpenter to produce a door with dimensions 2m × 1m? Why?

Please select a specific "Significant Figures and their Importance" lesson from the table below, review the video tutorial, print the revision notes or use the practice question to improve your knowledge of this physics topic.

Units and Measurements Learning Material
Tutorial IDPhysics Tutorial TitleTutorialVideo
Tutorial
Revision
Notes
Revision
Questions
1.3Significant Figures and their Importance
Lesson IDPhysics Lesson TitleLessonVideo
Lesson
1.3.1What are significant figures?
1.3.2How to find the number of significant figures in a given numerical value?
1.3.3How to round up a number to the required number of significant figures?
1.3.4Why are significant figures so important in measurements?

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