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Ch 10 Vocab

TermDefinition
force a push or pull
newton SI unit for magnitude, or strength, of a force
net force combination of all forces acting on an object
unbalanced forces causes the velocity of an object to change
balanced forces equal forces acting on one object in opposite direction
friction 2 surfaces exert pressure on each other
static friction friction acts on objects not moving
sliding friction solid surfaces slide over each other
rolling friction object rolls across a surface
fluid friction water, oil, or air
gravity force that pulls objects toward each other
mass measure amount of matter in an object
weight gravitational force exerted on a person or object
free fall force acting on an object gravity
air resistence fluid friction on an object falling through the air
projectile an object that is thrown
compression elastic force that squeezes or pushes matter together
tension elastic force that stretches or pulls matter
inertia tendency of an object to resist a change in motion
momentum characteristic of a moving object that depends on both the mass and the velocity of the object
law of conservation of momentum in the absence of outside forces, the total momentum of objects that interact does not change
satellite
centripetal force
.
Created by: caguilar616889