# Newton's Third Law

## For every action, there is an equal and opposite reaction.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Newton's Third Law

by CK-12 //at grade
Students will learn that Newton's 3rd law holds that for every force there is an equal but opposite reaction force. Important to note that the force and reaction force act on different objects.
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## Newton’s Third Law of Motion

by CK-12 //at grade
Describes Newton's Third Law of Motion.
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• Interactive Simulations

## Pirate Ship

by CK-12 //at grade
Learn about Newton's 3rd Law, and how the concept of the 'force pair' allows us to understand interactions between objects.
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• Simulation

## Third Law Simulation

by CK-12 //at grade
Explore changing forces to move a heavy cart to exact positions.
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• PLIX

## Rocket Science

by CK-12 //at grade
Newton's Third Law Interactive
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• PLIX

## Newton's 3rd Law: Gravity of Neptune

by CK-12 //at grade
Newton's Third Law Interactive
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• Video

## Physics of Walking

by CK-12 //at grade
Reviews Newton's Third Law and explains how it relates to walking.
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• 2
• Critical Thinking

## Newton's Third Law Discussion Questions

by CK-12 //at grade
A list of student-submitted discussion questions for Newton's Third Law.
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• Real World Application

## Rebuilding the Bridge

by CK-12 //at grade
Learn why knowing physics is important when rebuilding the Bay Bridge.
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• Real World Application

## The Art of Falling

by CK-12 //at grade
Learn how parachutes help skydivers land safely.
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• Real World Application

## Non-newtonian Fluids

by CK-12 //at grade
Discover how some liquids behave more like solids.
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• Study Guide

## Newton's Laws Study Guide

by CK-12 //at grade
This study guide looks at Newton's three laws, free body diagrams, and types of forces, including the force of gravity, normal force, and friction force.
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