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CH 2

Lessons 1-5

TermDefinition
force a push or pull exerted on a object
newton a unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second
net force the overall force on an object when all the individual forces acting on it are added together
friction the force that scrubs two surfaces exert on each other when they rub against each other
sliding friction friction that occurs when one solid object over another
static friction friction that acts between objects that are not moving
fluid friction friction that occurs when a object is moving therought a liquid
Rolling friction friction that occurs when a object rolls over a surface
gravity the attractive force between objects
mass amount of matter in a object
weight the measure of the force of gravity acting on a object
inertia the tendency of an object to resist the change in motion
momentum the product of a objects mass and velocity
law of conservation of momentum the rile that in the absence if outside forces the total momentum of objects that interact does not change
free fall the motion of a falling object when the only force acting on it is gravity
sataelite anyobject that orbits another object in space
contripedal force a force that causes an object to move in a circle
Created by: avitale036
 

 



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