Question 1

How many principle axes are there for the human body?

Accepted Answer

A)   one
B)   two
C)   three
D)   fourE) None of the above
F) All of the above

Question 2

Regarding moment of inertia of the leg with respect to the hip, which of the following leg morphologies would favor a sprinter?

Accepted Answer

A)   massive thighs and slimmer lower legs
B)   massive lower legs and slimmer thighs
C)   leg morphology does not matter
D)   need more informationE) B) and C)
F) A) and C)

Question 3

Moment of inertia is the angular analogue of what?

Accepted Answer

A)   moment of force
B)   moment of time
C)   mass
D)   surface areaE) A) and D)
F) A) and B)

Question 4

What effect does "choking up" on a bat have?

Accepted Answer

A)   reduces moment of inertia
B)   increases angular velocity of swing
C)   reduces mass
D)   both A and B
E)   all of the aboveF) A) and E)
G) All of the above

Question 5

Why are golf club heads weighted?

Accepted Answer

A)   to increase the moment of inertia of the club with respect to the shoulder
B)   to increase the moment of inertia of the club head rotating around the shaft
C)   to decrease the moment of inertia of the club with respect to the shoulder
D)   to decrease the moment of inertia of the club head rotating around the shaftE) None of the above
F) B) and C)

Question 6

When a body is rotating, the force directed toward the center of rotation is called ___________________ force.

Accepted Answer

The answer of When a body is rotating, the force...

Question 7

The statement "a rotating body will maintain a state of constant angular motion unless acted on by an external torque" refers to which of the following?

Accepted Answer

A)   Newton's first law of inertia
B)   Newton's second law of acceleration
C)   Newton's third law of action/reaction
D)   none of the aboveE) A) and B)
F) C) and D)

Question 8

Which of Newton's laws (angular analogues)  explains why a batter wears cleats?

Accepted Answer

A)   1st law-moment of inertia
B)   2nd law-angular acceleration
C)   3rd law-reaction
D)   none of the aboveE) A) and B)
F) A) and C)

Question 9

If a diver goes from a full layout position to a tuck position, what will happen to his momentum?

Accepted Answer

A)   increase
B)   decrease
C)   remain the same
D)   need more informationE) None of the above
F) All of the above

Question 10

What has historically been referred to as centrifugal force, is really just inertia.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is true of a baserunner weighing 70 Newtons and a baserunner weighing 50 Newtons?

Accepted Answer

A)   the centripetal force exerted on the heavier baserunner will be greater
B)   the heavier baserunner will not be able to run as fast around the bases, due to a greater centripetal force
C)   if the baserunners run at the same velocity around the bases, the heavier baserunner will have to lean in more towards the pitcher's mound due to a greater centripetal force
D)   all of the above are trueE) B) and D)
F) B) and C)

Question 12

Why is a bat easier to swing if you grip the barrel instead of the handle?

Accepted Answer

A)   k is reduced
B)   k is increased
C)   moment of inertia is increased
D)   easier to grip the barrelE) A) and D)
F) None of the above

Question 13

When knee flexion is increased, what happens to the moment of inertia of the leg about the hip?

Accepted Answer

A)   increased
B)   decreased
C)   remains the same
D)   need more informationE) A) and C)
F) A) and B)

Question 14

Discuss the advantages and disadvantages of a small body size (including muscle mass) for a gymnast performing full body rotations.

Accepted Answer

There are several advantages and disadva...

Question 15

Which of the following quantities increases as moment of inertia decreases during the airborne phase of a dive?

Accepted Answer

A)   angular momentum
B)   angular velocity
C)   both A and B
D)   neither A nor BE) All of the above
F) B) and D)

Exam 14: Angular Kinetics of Human Movement

Which of the following quantities increases as moment of inertia decreases during the airborne phase of a dive?

Correct Answer
verified

The statement "a rotating body will maintain a state of constant angular motion unless acted on by an external torque" refers to which of the following?

Correct Answer
verified

What has historically been referred to as centrifugal force, is really just inertia.

Correct Answer
verified

Which of Newton's laws (angular analogues) explains why a batter wears cleats?

Correct Answer
verified

What effect does "choking up" on a bat have?

Correct Answer
verified

Moment of inertia is the angular analogue of what?

Correct Answer
verified

If a diver goes from a full layout position to a tuck position, what will happen to his momentum?

Correct Answer
verified

Why is a bat easier to swing if you grip the barrel instead of the handle?

Correct Answer
verified

When a body is rotating, the force directed toward the center of rotation is called ___________________ force.

Correct Answer
verified

How many principle axes are there for the human body?

Correct Answer
verified

Discuss the advantages and disadvantages of a small body size (including muscle mass) for a gymnast performing full body rotations.

Correct Answer
Answered by ExamLex AI
There are several advantages and disadva...
View Answer

When knee flexion is increased, what happens to the moment of inertia of the leg about the hip?

Correct Answer
verified

Why are golf club heads weighted?

Correct Answer
verified

Which of the following is true of a baserunner weighing 70 Newtons and a baserunner weighing 50 Newtons?

Correct Answer
verified

Regarding moment of inertia of the leg with respect to the hip, which of the following leg morphologies would favor a sprinter?

Correct Answer
verified

Exam 14: Angular Kinetics of Human Movement

Which of the following quantities increases as moment of inertia decreases during the airborne phase of a dive?

Correct AnswerverifiedShow Answer

The statement "a rotating body will maintain a state of constant angular motion unless acted on by an external torque" refers to which of the following?

Correct AnswerverifiedShow Answer

What has historically been referred to as centrifugal force, is really just inertia.

Correct AnswerverifiedShow Answer

Which of Newton's laws (angular analogues) explains why a batter wears cleats?

Correct AnswerverifiedShow Answer

What effect does "choking up" on a bat have?

Correct AnswerverifiedShow Answer

Moment of inertia is the angular analogue of what?

Correct AnswerverifiedShow Answer

If a diver goes from a full layout position to a tuck position, what will happen to his momentum?

Correct AnswerverifiedShow Answer

Why is a bat easier to swing if you grip the barrel instead of the handle?

Correct AnswerverifiedShow Answer

When a body is rotating, the force directed toward the center of rotation is called ___________________ force.

Correct AnswerverifiedShow Answer

How many principle axes are there for the human body?

Correct AnswerverifiedShow Answer

Discuss the advantages and disadvantages of a small body size (including muscle mass) for a gymnast performing full body rotations.

Correct AnswerAnswered by ExamLex AIThere are several advantages and disadva...View AnswerShow Answer

When knee flexion is increased, what happens to the moment of inertia of the leg about the hip?

Correct AnswerverifiedShow Answer

Why are golf club heads weighted?

Correct AnswerverifiedShow Answer

Which of the following is true of a baserunner weighing 70 Newtons and a baserunner weighing 50 Newtons?

Correct AnswerverifiedShow Answer

Regarding moment of inertia of the leg with respect to the hip, which of the following leg morphologies would favor a sprinter?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
There are several advantages and disadva...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified