Module 7 Test Flashcards
State Newton’s second law of motion
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
State Newton’s third law of motion
For every action, there is an equal and opposite reaction
What is the formula for kinetic frictional force
State Newton’s first law of motion
An object in motion (or at rest) will tend to stay in motion (or at rest) until acted upon by an unbalanced force.
What is the weakest of the fundamental forces?
gravitational force
What is the formula for distance of a falling object?
Which of Newton’s laws is sometimes called the law of inertia?
Newton’s first law
the tendency of an object to resist changes in its velocity
inertia
a force that opposes motion, resulting from the contact of two surfaces
friction
A change in what affects the weight of an object
acceleration due to gravity
__ opposes the motion of stationary objects
static frictions
friction that opposes motion once the motion has already started
kinetic friction
What force holds the nucleus of atoms together?
strong nuclear force
friction that opposes the initiation of motion
static fraction
What is the formula for force?