Module 7 Test

Question 1

State Newton’s second law of motion

Answer 1

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

Question 2

State Newton’s third law of motion

Answer 2

For every action, there is an equal and opposite reaction

Question 3

What is the formula for kinetic frictional force

Answer 3

Question 4

State Newton’s first law of motion

Answer 4

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

Question 5

What is the weakest of the fundamental forces?

Answer 5

gravitational force

Question 6

What is the formula for distance of a falling object?

Answer 6

Question 7

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

Answer 7

Newton’s first law

Question 8

the tendency of an object to resist changes in its velocity

Answer 8

inertia

Question 9

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

Answer 9

friction

Question 10

A change in what affects the weight of an object

Answer 10

acceleration due to gravity

Question 11

__ opposes the motion of stationary objects

Answer 11

static frictions

Question 12

friction that opposes motion once the motion has already started

Answer 12

kinetic friction

Question 13

What force holds the nucleus of atoms together?

Answer 13

strong nuclear force

Question 14

friction that opposes the initiation of motion

Answer 14

static fraction

Question 15

What is the formula for force?

Answer 15

Question 16

for every action force there is a __

Answer 16

reaction force