# Newton's First Law

## Objects at rest stay unless acted upon and objects in motion continue unless acted upon.

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## Newton's First Law

The First Law is about inertia; objects at rest stay at rest unless acted upon and objects in motion continue that motion in a straight line unless acted upon.
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• Interactive Simulations

## Elevator

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

## First Law

Learn about Newton's first law that says how an object in motion, remains in motion at a constant velocity unless acted by a net external force.
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• Simulation

## First Law Simulation

Move a sled on ice as directed by telling an eskimo to push, pull, or apply no force at all.
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• PLIX

## Determining the Net Force

Newton's First Law Interactive
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• Video

## Professor Mac Explains Newton's First Law of Motion

Explains Newton's first law and demonstrates the law with an experiment.
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• Critical Thinking

## Newton's First Law Discussion Questions

A list of student-submitted discussion questions for Newton's First Law.
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• Study Guide