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# Vocab Ch. 3

Friction The force that acts to resist the relative motion of objects or materials that are in contact.
Inertia The property of anay body to resist changes in its state of motion. Mass is the measure of inertia.
Newton's first Law (Law of Inertia) everybody continues in its state of rest, or of motion in a straight line at constant speed, unless acted upon by a non-zero force.
Law of Inertia (Newtons first Law) everybody continues in its state of rest, or of motion in a straight line at constant speed, unless acted upon by a non-zero force.
Kilograms the fundamental SI unit of mass. One kilogram (kg) is the amount of mass in one liter of water at 4 degrees C
mass A measure of an objects inertia; also a measure of the amount of matter in an object. Depends only on the amount of and kind of particles that compose an object-not on its location
Newton SI unit of force. One newton (N) is the force applied to a one-kilogram mass that will produce an acceleration of one meter per second per second m/s/s
Created by: elmo45

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