Chapter 3 vocab Flashcards

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0
Q

Air Drag

A

Frictional resistance due to motion through air.

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1
Q

Acceleration

A

The rate at which velocity changes with time,the change may be in magnitude or direction or both.

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2
Q

Free Fall

A

Motion under the influence of gravitational pull only.

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3
Q

Friction

A

The resistive force that opposes the motion or attempted motion of an object past another.

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4
Q

Inversely

A

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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5
Q

Kilogram

A

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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6
Q

Mass

A

The amount of matter in an object; the more mass an object has, the more it resists changes in motion.

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7
Q

Newton’s second law

A

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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8
Q

Terminal speed

A

Terminal speed with direction of motion (down for falling objects).

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9
Q

volume

A

the quantity of space an object occupies.

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10
Q

weight

A

the force due to gravity on an object.

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