Newton's Third Law

The Newton's Third Law Video Tutorial explains the claims made by Newton's Third Law of motion. The concept of an interaction force pairs between contacting objects is explained in great depth. The equal and opposite nature of the interaction forces are discussed and numerous examples are given.

The video lesson answers the following questions:

In what way does Newton’s third law of motion describe the nature of a force on an object?
How can Newton’s third law and Newton’s second law be combined to describe the magnitude of the force and the acceleration of two interacting objects?

Video

You can watch the video below, or click here to watch on YouTube (opens in a new tab).

To improve the effectiveness of the learning experience, The Physics Classroom has provided the following tools:

Additional and Related Learning Tools

Minds On Physics - Part 2, Newton's Laws module, Mission NL12
Those serious about learning Physics will appreciate our Minds On Physics apps. The questions target common misconceptions, provide immediate feedback, and continue to target misunderstandings until mastery is demonstrated.

Physics Classroom Tutorial - Newton's Laws Chapter, Lesson 4
The Tutorial pages of our website have a reputation for presenting physics concepts in an easy-to-understand language. It's a reliable and quick reference when you need a follow-up to this video.

Teacher Resources

Teacher Toolkits: Newton's Third Law
Teacher Toolkits provide teachers a collection of annotated links to vetted resources on the internet that are standards-based and multimedia reliant. This particular Toolkit is on Newton's Third Law and should assist a teacher in finding resources for planning lessons that are next steps to this video.

Curriculum Corner: Newton's Laws Chapter
The Curriculum Corner provides classroom-ready Think Sheets that fuel great in-class discussions. The think sheet on

Newton's Third Law
makes a great follow-up to this video tutorial. Concept Builders We currently do not have any Concept Builders on the topic of Newton's third law. But our minds are on the look out for one and we hope to come up with an idea soon. Until then the resources below will have to do.

Minds On Physics - Part 2, Newton's Laws module, Mission NL12
Our Minds On Physics apps target common misconceptions, provide immediate feedback, and continue to target misunderstandings until mastery is demonstrated. They are great for students who are patient and serious about their learning.

Lesson Notes

Download (opens in a new tab) or view below

Slides

Do you like the slides we used? They are available in our low cost Teacher Presentation Pack, along with other updated materials used in our presentation.