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chapter 12 vocab

18 cards·by Ryan_Parker78
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force
a force is a push or pull that acts on an object
newton
the force that causes a 1 kilogram mass to accelerate at a rate of 1 m/s/s
net force
overall force acting on an object after all forces are combined
friction
a force that opposes the motion of objects that touch as they move past each other
static friction
the force that acts on objects that are not moving
question
answer
sliding friction
force that opposes the direction of motion of an object as it slides over a surface
rolling friction
friction that acts on rolling objects
fluid friction
opposes the motion of an object through a fluid
air resistance
fluid friction on an object moving through air
gravity
acts downward towards to the center of earth
terminal velocity
consistant velocity of a falling object when the force of air resistance = force of gravity
projectile motion
combo of a initial forward velocity and the downward vertical force of gravity causes the ballto follow a curved path
inertia
tendency of an object to resist
mass
messure of inertia and depends on the amount of matter the object contains
weight
how much mass an object has
momentum
product of its mass and velocity is large
law of conservation of momentum
if no net force acts on a system then total momentum of the system does not change