Dynamics 9 - Sierzega Dynamics 9 Newtons Third Law Newtons Third Law of Motion When two objects interact object 1 exerts a force on object 2 Object 2 in

Dynamics 9 - Sierzega Dynamics 9 Newtons Third Law Newtons...

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Sierzega: Dynamics 9 Lesson Activity modified from PUM and Active Learning Guide, Etkina and Van Heuvelen, 2010 1 Newton’s Third LawNewton’s Third Law of Motion: When two objects interact, object 1 exerts a force on object 2. Object 2 in turn exerts an equal-magnitude, oppositely directed forceon object 1: F1 on 2= -F2 on 1 Each force above is caused by one object and is exerted on another object. Since these two forces are exerted on two different objects, they cannot be added to find a net force.9.1 Represent and Reason Fill in the empty spaces and draw pictures representing the situations. Place force arrows on the pictures; remember to think about the lengths of the arrows. a)When the Earth exerts a force on the book, the book exerts a force on __________ b)When a table exerts a force on the book, the book exerts a force on _________ c)When a tennis racket exerts a force on the ball, the ball exerts a force on_________ d)When car tires push back on the Earth’s surface, the Earth’s surface _________9.2 Relate List 5 everyday experiences that support the idea that when object Bexerts a force on object A, object Awill

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