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| the rate at which velocity changes with time; the change may be in magnitude or direction or both |
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| frictional resistance due to motion through air |
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| motion under the influence of gravitational pull only |
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| the resistive force that opposes the motion or attempted motion of an object past another with which it is in contact, or through a fluid |
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| the property of things to resist changes in motion |
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| when two values change in opposite directions, so that if one increases and the other decreases by the same amount, they are said to be inversely proportional to each other |
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| the fundamental SI unit of mass. one kilogram (symbol kg) is the mass of 1 liter (l) of water at 4* C. |
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| the acceleration produced by a net force on an object is directly proportional to the net force, is in the same direction as the net force, and is inversely proportional to the mass of the object |
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| 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 in any way its state of motion |
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| the speed at which the acceleration of a falling object terminates because air resistance balances its weight |
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| terminal speed with direction of motion (down for falling objects) |
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| the quantity of space an object occupies |
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| the force due to gravity on an object |
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