Definition of Force - A force is a push or a pull, Newtons (N) - The unit of measurement for Force, Contact Force - Friction, support, thrust or tension, Non-Contact Force - Magnetism, electrostatic or gravity, Weight - Effect of gravity on the mass of an object, Balanced Forces - No net force acting on the object (Stationary objects stay stationary, moving objects remain at a constant speed), Unbalanced Forces - Net force acting on the object (object will accelerate or decelerate), Buoyancy - Name of Support Force when object is in water, Mass - Amount of matter or "stuff" an object contains, Opposite Force to Thrust - Friction/Drag, Opposite Force to Weight - Support/Buoyancy/Air resistance,

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