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physics test 2

QuestionAnswer
force perpendicular to the surface that prevents an object from entering the surface normal force
ratio between Fsmax and Fn coeffecient of static friction
ratio between Fk and Fn coeffecient of kinetic friction
2 objects rub off each other force of friction
chance in position of Xf - Xi displacement
displacement/time average velocity
change in velocity of over change in time average acceleration
the force between two surfaces that resists the initiation of sliding static friction
the force that opposes the movement of two surfaces that are sliding across each other kinetic friction
ratio of the magnitude of the force of friction and the normal force coefficient of friction
the maximum force exerted on an object before it begins to accelerate Fsmax
change in position displacement
displacement over change in time velocity
change in velocity over change in time acceleration
number is given to a power of ten and all numbers given are significant scientific notation
the degree of exactness of a measurement precision
describes how close a measurement is to the accepted value accuracy
the digits in a measurement that are known with certainty plus the first estimated digit significant figures
a quantity that has magnitude but no direction scalar ex:speed
a quantity that has both direction and magnitude vector ex:acceleration
describes the interactions between an object and its environment force
result from physical contact between two objects contact forces
doesnt involve physical contact between two objects field forces
the amount of force that when acting on one kilogram of mass produces an acceleration of 1m/s squared Newton
an object at rest remains at rest and an object in motion continues in motion with constant velocity Newton's first Law
the tendency of an object not to accelerate inertia
the vector sum of all forces acting on an object Net Force
a single force that acts on an object as a result of the interaction of object and its environment external force
objects that are at rest or moving with constant velocity equilibrium
part of a vector that is parallel to the x axis x component
part of a vector that is parallel to the y axis y component
the velocity of an object at a specific instant or point in the objects path instantaneous velocity
Created by: fosterw