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MFE-Chap 2

Forces

questionsanswers
the combination of all forces acting on an object net force
the strength of a force is measured in this SI unit newton (N)
when there is a net force acting on an object unbalanced forces
equal forces acting on an object balanced forces
the force that two surfaces exert on each other when they rub against each other friction
friction that acts on objects that are not moving static friction
occurs when two solid surfacesslide over each other sliding friction
when an object rolls over a surface rolling friction
fluids, such as water, oil, or air are materials that flow easily fluid friction
a force that pulls objects toward each other gravity
a measure of the amount of matter in an object mass
the force of gravity on a person or object at the surface of a planet weight
when the only force (gravity) is acting on an object free fall
objects falling through air experience this type of fluid friction air resistance
the greatest velocity a falling object reaches terminal velocity
an object that is thrown projectile
the tendency of an object to resist a change in motion inertia
a characteristic of a moving object that is related to the mass and the velocity of the object momentum
any object that orbits another object in space satellite
any force that causes an object to move in a circular path centripetal force
a push or a pull forcw
Created by: wjsan1970
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