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Science Chapter 5

non-contact force A force that acts at a distance.
force A push or pull that acts on an object.
gravity The force of attraction between any two objects.
contact force A force that requires two pieces of matter to touch.
inertia The tendency of an object to resist any change in motion.
acceleration The rate at which the speed or direction of motion of an object changes over time.
friction The force that results when two materials rub against each other or when their contact prevents sliding.
Newton's first law of motion An object will stay in uniform motion unless a net force acts on the object.
Newton's second law of motion The acceleration of an object is dependent upon two variables- the net force acting upon the object and the mass of the object.
Newton's third law of motion When one object exerts a force on a second object, the second object exerts a force on the first. Those forces are equal in strength and opposite in direction.
Created by: CoachD



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