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Flashcards in Chapter 4 Deck (6)
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-Something that is capable of changing an objects state of motion (velocity)


Free-Body Diagram

-Used to analyze only the forces affecting the motion of a single object


Newton's First Law of Motion

-An object at rest will stay at rest unless acted upon by an unbalanced force
-An object in motion will stay in motion with a constant speed and direction unless acted upon by an unbalanced force
-Ex: soccer ball being kicked


Newton's Second Law of Motion

-The acceleration of an object is:
-Directly proportional to the net force acting upon it
-Inversely proportional to its mass
-Ex:use a certain acceleration and apply the properties to it


Newton's Third Law of Motion

-For every force (action), their is an equal and opposite force (reaction)
Ex: sitting in a chair


Net Force

-The vector sum of all the forces acting on an object
-Equals 0: balanced
-Nonzero: unbalanced