Ch 4 - Newton's 2nd Law of Motion Flashcards

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1
Q

Acceleration depends on

A

net force

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2
Q

To increase the acceleration of an object

A

You must increase the net force acting on it.

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3
Q

Acceleration is inversely proportional to

A

Mass

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4
Q

Twice the mass produces

A

half the acceleration

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5
Q

3 times the mass produces

A

1/3 the acceleration

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6
Q

Newton’s Second Law – The Law of Acceleration

A

relates acceleration to force and mass

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7
Q

Mass

A

A measure of the amount of matter or inertia of a physical object.

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8
Q

Weight

A

The force on an object due to gravity.

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9
Q

Friction

A

Friction occurs when surfaces slide over one another.
It reduces the net force and in turn also the acceleration.

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10
Q

Friction always occurs in the

A

opposite the direction of motion.

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11
Q

The Force of Friction depends on

A

depends on the kinds of material and how much they are pressed together.

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12
Q

Terminal speed

A

occurs when acceleration terminates (when air resistance equals weight and net force is zero).

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13
Q

Terminal velocity

A

same as terminal speed, with direction specified.

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