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chapter 10

forces

TermDefinition
net force the overall force on an object when all the individual forces acting on it are added together
law of conservation of momentum the rule that in the absence of outside forces the total momentum of objects that interact does not change
tension an elastic force that stretches or pulls on the molecules in matter
sliding friction friction that occurs when one solid surface slides over another
unbalanced force forces that cause an objects velocity to change
air resistance the fluid friction experienced by objects falling through air
rolling friction friction that occurs when an object rolls over a surface
gravity the force that pulls objects toward each other
newton the SI unit used for the magnitude, or strength, of a force
weight a measure of the force of gravity on an object
force a push or pull exerted on an object
fluid friction friction that occurs as an object moves through a fluid
static friction friction that acts on objects that are not moving
inertia the tendency of an object to resist any change in its motion
compression an elastic force that squeezes or pushes the molecules in matter together
Created by: kruiz
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