# Chapter 1

 The property by which objects resist changes in motion Inertia The quantity of matter in an object. More specifically, it is the measure of the inertia or sluggishness that an object exhibits in response to any effort made to start it, stop it, deflect it, or change its state of motion in any way. Mass Simply stated, the force due to gravity on an object. More specifically, the gravitational force with which a body presses against a supporting surface. Weight The unit of mass. One kilogram (symbol kg) is the mass of 1 liter (L) of water at 4°C. Kilogram Simply stated, a push or a pull. Force The Scientific unit of force Newton The combination of all forces that act on an object Net Force A quantity that specifies direction as well as magnitude Vector quantity The vector sum of forces acting on a nonaccelerating object equals zero: Equilibrium rule The force that supports an object against gravity, often called the normal force. Support Force AuthorMeggybaby ID35792 Card SetChapter 1 DescriptionMotion and Kinematics Updated2010-09-19T22:06:33Z Show Answers