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chap2 vocab

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TermDefinition
force push or pull
new force sum of all forces acting on an object
friction the force that opposes the sliding motion of two surfaces that are touching each other.
gravity attractive force between any two objects that depend on the masses of the objects of the objects and the distance between them.
field a region of space that has a physical quantity at every point.
weight the gravitational force exerted on an object
newton's first law of motion states that an object moves on it.
inertia the tendency of an object to resist any change in its motion.
newton's second law of motion states that an object’s acceleration is in the same direction as the net force on the object and is equal to the net force exerted on it divided by its mass.
newton's third law of motion states that when one object exerts a force on a second object, the second object exerts a force on the first object that is equal to the strength opposite in direction.
air resistance friction like force that opposes the motion of an object that moves through the air.
terminal velocity the maximum speed an object will reach when falling through a substance such as air
centripetal force a force exerted toward the center of a curved path.
law of conservation momentum if no external forces act on a group of objects, their total momentum does not change.
Created by: user-2054207
 

 



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