chap 3

Question 1

Motion and stability are affected tremendously by the interaction of
affordances
constraints
growth
attractor states

Answer 1

constraints

Question 2

What does Newton’s first law of motion state?
Gravity is inversely proportional to the force multiplied by mass
The acceleration of a person or object is proportional to the force applied to it and inversely proportional to its mass
You must apply force to a stationary object to move it and to a moving object to change its movement
For every force you exert on an object, the object exerts an equal force back to you in the opposite direction

Answer 2

You must apply force to a stationary object to move it and to a moving object to change its movement

Question 3

Which group adopts stability movement strategies? (choose all that apply)
proficient walkers
new walkers
older adults
runners

Answer 3

new walkers & older adults

Question 4

In a maximal ballistic effort (such as kicking a ball as hard as possible), the movement involves multiple body parts that act in a sequence. This sequences is known as __________.
inertia
the interaction of constraints
a rotation
an open kinetic chain

Answer 4

an open kinetic chain

Question 5

What does Newton’s second law of motion state?
The acceleration of a person or object is proportional to the force applied to it and inversely proportional to its mass
Gravity is inversely proportional to force multiplied by mass
You must apply force to a stationary object to move it and to a moving object to change its movement
For every force you exert on an object, the object exerts an equal force back on you in the opposite direction

Answer 5

The acceleration of a person or object is proportional to the force applied to it and inversely proportional to its mass

Question 6

_________, which refers to an object’s resistance to motion, is related to the mass of an object.
inverse acceleration
inertia
momentum
opposition

Answer 6

inertia

Question 7

an individual’s _______________ is the ability to resist movement or disruption.
relationship between rotating limbs and projected objects
force absorption
balance
stability

Answer 7

stability

Question 8

Which of the following are elements of the open kinetic chain of movement?
intensity and inertia
force production and inertia
optimal sequence and timing
intensity and timing
optimal sequence and intensity

Answer 8

optimal sequence and timing

Question 9

A key point of this chapter is that ____________ principles govern all of our movements.
chemical
biological
mechanical
physical

Answer 9

mechanical

Question 10

What does Newton’s third law of motion state?
The acceleration of a person or object is proportional to the force applied to it and inversely proportional to its mass
You must apply force to a stationary object to move it and to a moving object to change its movement
Gravity is inversely proportional to force multiplied by mass
For every force you exert on an object, the object exerts an equal force back on you in the opposite direction (law of action-reaction)

Answer 10

For every force you exert on an object, the object exerts an equal force back on you in the opposite direction (law of action-reaction)