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6th Unit B Chp 3

6th Ch.3 study stack

QuestionAnswer
a push or a pull force
the force of attraction that exists between any two objects gravity
the amount of matter in an object mass
a measure of the pull of gravity on an object's mass weight
in the metric system, the unit used to measure force or weight newton
the combination of all the forces acting on an object net force
equal forces acting in opposite directions balanced forces
the change in position of one object compared to the position of another relative motion
the object an observer uses to detect motion frame of reference
the distance an object moves in a certain period of time speed
the speed at any given point instantaneous speed
a device that shows instantaneous speed speedometer
a measure of both the speed and direction of a moving object velocity
the change in velocity during a particular time period acceleration
a statement that describes events or relationships that exist in nature law
the resistance of an object to change in state of motion inertia
a force between surfaces that resists the movement of one surface past the other surface friction
the friction from air molecules hitting an object as the object moves through the air air resistance
All objects resist changes in motion Newton's First Law of Motion
An object's acceleration depends on the mass of the object and the size and direction of the force acting on it Newton's Second Law of Motion
When one object exerts a force upon a second object, the second object exerts and equal and opposite force upon the first object Newton's Third Law of Motion
Created by: cgockel
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