# Newton's Second Law

## F = ma ; Force = mass * acceleration

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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.
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## Newton's Second Law

by CK-12 //at grade
The acceleration experienced by an object will be proportional to the applied force and inversely proportional to its mass. If there are multiple forces, they can be added as vectors and it is the net force that matters.
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• Interactive Simulations

## Hot Air Balloon

by CK-12 //at grade
Learn about Newton's 2nd Law - the relationship between force, mass, and acceleration, for a hot air balloon.
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• Interactive Simulations

## Everglades Airboat

by CK-12 //at grade
Learn about Newton's 2nd Law - the relationship between force, mass, and acceleration, for a wind-powered boat.
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• Interactive Simulations

## Unicycle

by CK-12 //at grade
Understand the phenomenon of rolling without slipping, even under an applied torque, in the context of a unicycle.
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• Interactive Simulations

## Elevator

by CK-12 //at grade
Understand the relationship between normal force, gravity, net force, and acceleration in the context of a ride in an elevator.
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• Interactive Simulations

## Airplane

by CK-12 //at grade
Explore different types of forces acting on a airplane, including lift, drag, thrust, and gravity. Learn about the relationship between the net unbalanced force acting on an object and its acceleration.
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• PLIX

## Determining the Net Force

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

## Elevator Type Problems

by CK-12 //at grade
Elevator problems and how acceleration affects the normal force are explained in this video with an example.
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• Critical Thinking

## Newton's Second Law Discussion Questions

by CK-12 //at grade
A list of student-submitted discussion questions for Newton's Second Law.
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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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