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Physics Tutorial 4.7 - Newton's Third Law of Motion

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There are 4 lessons in this physics tutorial covering Newton's Third Law of Motion. The tutorial starts with an introduction to Newton's Third Law of Motion 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 Newton's Third Law of Motion. you can access all the lessons from this tutorial below.

In this Physics tutorial, you will learn:

  • What are action and reaction?
  • What does Newton's Third Law of Motion says?
  • Why two forces that are involved in an action-reaction process do not cancel each other?
  • What is the condition that two forces obey the action-reaction principle?
  • What are some examples of action-reaction principle?
  • Why not all forces do appear in a force diagram?

Introduction

When we punch a wall, our hand gets hurt. Why do you think this occurs?

Why we don't experience the same effect when we push gently an object with a finger? Try to explain.

Please select a specific "Newton's Third Law of Motion" 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.

Dynamics Learning Material
Tutorial IDPhysics Tutorial TitleTutorialVideo
Tutorial
Revision
Notes
Revision
Questions
4.7Newton's Third Law of Motion
Lesson IDPhysics Lesson TitleLessonVideo
Lesson
4.7.1The Meaning of Action and Reaction
4.7.2Definition of Newton's Third Law of Motion
4.7.3What is the Condition that Two Forces Obey the Action-Reaction Principle?
4.7.4Examples of Action and Reaction Forces

Whats next?

Enjoy the "Newton's Third Law of Motion" physics tutorial? People who liked the "Newton's Third Law of Motion" tutorial found the following resources useful:

  1. Physics tutorial Feedback. Helps other - Leave a rating for this tutorial (see below)
  2. Dynamics Revision Notes: Newton's Third Law of Motion. Print the notes so you can revise the key points covered in the physics tutorial for Newton's Third Law of Motion
  3. Dynamics Practice Questions: Newton's Third Law of Motion. Test and improve your knowledge of Newton's Third Law of Motion with example questins and answers
  4. Check your calculations for Dynamics questions with our excellent Dynamics calculators which contain full equations and calculations clearly displayed line by line. See the Dynamics Calculators by iCalculator™ below.
  5. Continuing learning dynamics - read our next physics tutorial: What Causes Motion? The Meaning of Force

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