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Motion Physical Science
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Issac Newton - Sciencemaster.com
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Issac Newton - Sciencemaster.com |
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Newton's Three Laws of Motion Newton's first law: law of inertia An object at rest will remain at rest unless acted upon by an external and unbalanced force. An object in motion will remain in motion unless acted upon by an external and unbalanced force. Newton's second law: law of acceleration The rate of change of momentum of a body is proportional to the resultant force acting on the body and is in the same direction. Newton's third law: law of reciprocal actions All forces occur in pairs, and these two forces are equal in magnitude and opposite in direction. |
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