Newton's First Law of Motion - Inertia
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Created by:
BorderlineGenius on May 5, 2012
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Description:
Vocabulary words and important facts from Chapter 3: Newton's First Law of Motion - Inertia from the Prentice Hall Conceptual Physics textbook. Big Idea: force causes change in motion.
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9 terms
Terms | Definitions |
|---|---|
 friction | the force that acts between materials as they move past each other |
| inertia | the property of a body to resist changes to its state of motion |
| When is a force needed to keep an object in motion? | A force is needed to keep an object in motion when friction is present. |
| Newton's first law (the law of inertia) | Newton's first law states that every object continues in a state of rest, or in a uniform speed in a straight line, unless acted on by a nonzero net force. |
| mass | the quantity of matter in an object |
| mass is measured in... | kilograms |
| weight | the force of gravity on an object |
| What is the relationship between mass and inertia? | The more mass an object has, the greater its inertia and the more force it takes to change its state of motion. |
| How does the law of inertia apply to objects in motion? | The law of inertia states that objects in motion stay in motion if no unbalanced forces act on them. |
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