Module 7 Test Flashcards

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1
Q

State Newton’s second law of motion

A

When an object is acted on by one or more unbalanced forces, the total net force is equal to the mass of the object times the resulting acceleration

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2
Q

State Newton’s third law of motion

A

For every action, there is an equal and opposite reaction

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3
Q

What is the formula for kinetic frictional force

A
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4
Q

State Newton’s first law of motion

A

An object in motion (or at rest) will tend to stay in motion (or at rest) until acted upon by an unbalanced force.

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5
Q

What is the weakest of the fundamental forces?

A

gravitational force

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6
Q

What is the formula for distance of a falling object?

A
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7
Q

Which of Newton’s laws is sometimes called the law of inertia?

A

Newton’s first law

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8
Q

the tendency of an object to resist changes in its velocity

A

inertia

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9
Q

a force that opposes motion, resulting from the contact of two surfaces

A

friction

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10
Q

A change in what affects the weight of an object

A

acceleration due to gravity

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11
Q

__ opposes the motion of stationary objects

A

static frictions

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12
Q

friction that opposes motion once the motion has already started

A

kinetic friction

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13
Q

What force holds the nucleus of atoms together?

A

strong nuclear force

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14
Q

friction that opposes the initiation of motion

A

static fraction

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15
Q

What is the formula for force?

A
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16
Q

for every action force there is a __

A

reaction force