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# friction

TermDefinition
Friction a force that two surface exert on each other when they rub against each other.
Static friction acts on objects that are not moving
Sliding friction occurs when two solid surfaces slide over each other
Rolling friction when an object rolls across a surface
Fluid friction occurs when a solid object moves throughout a fluid
Gravity is a force that pulls objects towards each other.
Mass the measure of the amount of matter in an object
Weight a gravitational force exerted on a person or object at the surface of a planet
Free fall when the only force acting on an object is gravity
Air resistance A type of fluid friction that acts on objects falling through the air
Projectile An object that is thrown
Compression an elastic force that squeezes or pushes matter together.
Tension An elastic force that stretches or pulls matter
Force a push or pull exerted on an object
Newton a unit of measure that equals the force required to accelerate 1 kilogram of mass at 1 meter per second per second
Net force the overall force on an object when all the individual forces acting on it are added together
Unbalanced forces force that produces a nonzero net force, which changes an object’s motion
Balanced forces equal forces acting on an object in opposite directions
Inertia an object’s tendency to resist change in motion
Momentum the quantity of motion
The Law of Conservation of Momentum without outside forces, objects that interact will have the same momentum.
Satellite any object that orbits another object in space
Centripetal force any force that causes an object to move in a circular motion
Created by: keith_kellier