a push or pull on an object
the strength of a force measured in the SI system
the combination of all of the forces acting on an object
result in a net force that causes a change in a object's motion
equal forces acting in opposite directions
the force that two surfaces exert on each other when they rub against each other; acts opposite the direction of motion
the friction that acts on objects that are not moving; acts opposite the direction of motion
occurs when two solid objects slide over each other; acts opposite the direction of motion
occurs when an object rolls over a surface; acts opposite the direction of motion
occurs when a solid object moves through a liquid; acts opposite the direction of motion
a force that pulls objects towards each other
force of gravity acting on the a person or object at the surface of the planet
occurs when the only force acting on an object is the force of gravity
a measure of the amount of matter in an object
an upward force exerted on all falling objects
the greatest velocity a falling object reaches
an object that is thrown
tendency of an object to resist a change in motion
characteristic a moving object that is related to the mass and velocity of the moving object
law of conservation of momentum
the total momentum of objects that interact does not change
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