Question 1

Why do sprint coaches stress "heel to buttocks" during sprinting?

Accepted Answer

A)  reduces moment of inertia of the leg with respect to the hip 
B)  reduces moment of inertia of the lower leg with respect to the knee 
C)  reduces moment of inertia of the foot with respect to the ankle 
D)  there is no scientific basis for this coaching cue 
A)  reduces moment of inertia of the leg with respect to the hip 
B)  reduces moment of inertia of the lower leg with respect to the knee 
C)  reduces moment of inertia of the foot with respect to the ankle 
D)  there is no scientific basis for this coaching cue A

Question 2

Which of the following accurately describes the radius of gyration of the forearm segment?

Accepted Answer

A)  It is greater with respect to the wrist than with respect to the elbow. 
B)  It is greater with respect to the elbow than with respect to the wrist. 
C)  It is equal with respect to the wrist and with respect to the elbow. 
D)  need more information 
A)  It is greater with respect to the wrist than with respect to the elbow. 
B)  It is greater with respect to the elbow than with respect to the wrist. 
C)  It is equal with respect to the wrist and with respect to the elbow. 
D)  need more information A

Question 3

If an airborne performer wishes to maximize the number of revolutions she spins, she should extend the limbs as far from the axis of rotation as possible.

Accepted Answer

A) True 
 B)False  False

Question 4

Which of the following is/are accurate formula(s) for angular momentum?

Accepted Answer

A)  H = Iw 
B)  H = mk2w 
C)  M = mv 
D)  both A and B 
E)  all of the above 
A)  H = Iw 
B)  H = mk2w 
C)  M = mv 
D)  both A and B 
E)  all of the above

Question 5

Which of the following are accurate units for centripetal force?

Accepted Answer

A)  kg·m2/s 
B)  kg·deg2/s 
C)  N 
D)  N-kg·m 
A)  kg·m2/s 
B)  kg·deg2/s 
C)  N 
D)  N-kg·m

Question 6

Where is radius of gyration located in relation to center of gravity (COG)?

Accepted Answer

A)  closer to the axis 
B)  further from the axis 
C)  same distance from the axis 
D)  need more information 
A)  closer to the axis 
B)  further from the axis 
C)  same distance from the axis 
D)  need more information

Question 7

Which of the following is/are most important factor(s) affecting the magnitude of centripetal force?

Accepted Answer

A)  tangential linear velocity 
B)  radius of rotation 
C)  mass 
D)  all of the above are equally important 
A)  tangential linear velocity 
B)  radius of rotation 
C)  mass 
D)  all of the above are equally important

Question 8

In the absence of external torque, which of the following will increase when moment of inertia decreases?

Accepted Answer

A)  angular momentum 
B)  angular velocity 
C)  both A & B 
D)  none of the above 
A)  angular momentum 
B)  angular velocity 
C)  both A & B 
D)  none of the above

Question 9

Which of the following are accurate units for moment of inertia?

Accepted Answer

A)  N·m 
B)  N·m2 
C)  kg·m2 
D)  kg·m 
A)  N·m 
B)  N·m2 
C)  kg·m2 
D)  kg·m

Question 10

Explain transfer of angular momentum using an example in sport, dance or rehabilitation.

Accepted Answer

The transfer of angular momentum can be

Question 11

Discuss the factors that affect moment of inertia, including examples.

Accepted Answer

Moment of inertia is a measure of an obj

Question 12

The product of moment of inertia and angular velocity is ___________________ ___________________.

Accepted Answer

The answer of The product of moment of inertia and...

Question 13

Which of the following variables contribute to moment of inertia?

Accepted Answer

A)  F and d 
B)  T and t 
C)  M and v 
D)  m and k 
A)  F and d 
B)  T and t 
C)  M and v 
D)  m and k

Question 14

Which of the following is known as "center-seeking" force?

Accepted Answer

A)  momentum 
B)  acceleration 
C)  centrifugal force 
D)  centripetal force 
A)  momentum 
B)  acceleration 
C)  centrifugal force 
D)  centripetal force

Question 15

Rotating around which of the following principal axes of rotation has the least moment of inertia (anatomical position)?

Accepted Answer

A)  transverse (frontal) 
B)  anteroposterior (sagittal) 
C)  longitudinal 
D)  need more information 
A)  transverse (frontal) 
B)  anteroposterior (sagittal) 
C)  longitudinal 
D)  need more information

Question 16

When a cyclist rounds a curve, where does centripetal force act?

Accepted Answer

A)  on the cyclist's center of gravity 
B)  on the cycle's center of gravity 
C)  on the tires of the cycle 
D)  on the ground 
A)  on the cyclist's center of gravity 
B)  on the cycle's center of gravity 
C)  on the tires of the cycle 
D)  on the ground

Question 17

Why does a figure skater cross his arms tightly across the chest when performing a quadruple axel?

Accepted Answer

A)  to reduce moment of inertia 
B)  to increase angular velocity 
C)  to increase time in the air 
D)  both A and B 
E)  all of the above 
A)  to reduce moment of inertia 
B)  to increase angular velocity 
C)  to increase time in the air 
D)  both A and B 
E)  all of the above

Question 18

Somersaulting occurs around which of the following axes of rotation?

Accepted Answer

A)  frontal 
B)  sagittal 
C)  longitudinal 
D)  all of the above 
A)  frontal 
B)  sagittal 
C)  longitudinal 
D)  all of the above

Question 19

How can a cyclist maintain balance when rounding a sharp curve?

Accepted Answer

A)  slow down 
B)  lean to the inside of the curve 
C)  lean to the outside of the curve 
D)  both A and B 
E)  none of the above will affect balance 
A)  slow down 
B)  lean to the inside of the curve 
C)  lean to the outside of the curve 
D)  both A and B 
E)  none of the above will affect balance

Question 20

During skilled performance of a throw or strike, momentum is generally transferred from the more proximal segments to the more distal segments.

Accepted Answer

A) True 
 B)False

Why do sprint coaches stress "heel to buttocks" during sprinting?

Which of the following accurately describes the radius of gyration of the forearm segment?

If an airborne performer wishes to maximize the number of revolutions she spins, she should extend the limbs as far from the axis of rotation as possible.

Which of the following is/are accurate formula(s) for angular momentum?

Which of the following are accurate units for centripetal force?

Where is radius of gyration located in relation to center of gravity (COG)?

Which of the following is/are most important factor(s) affecting the magnitude of centripetal force?

In the absence of external torque, which of the following will increase when moment of inertia decreases?

Which of the following are accurate units for moment of inertia?

Explain transfer of angular momentum using an example in sport, dance or rehabilitation.

Discuss the factors that affect moment of inertia, including examples.

The product of moment of inertia and angular velocity is _ _.

Which of the following variables contribute to moment of inertia?

Which of the following is known as "center-seeking" force?

Rotating around which of the following principal axes of rotation has the least moment of inertia (anatomical position)?

When a cyclist rounds a curve, where does centripetal force act?

Why does a figure skater cross his arms tightly across the chest when performing a quadruple axel?

Somersaulting occurs around which of the following axes of rotation?

How can a cyclist maintain balance when rounding a sharp curve?

During skilled performance of a throw or strike, momentum is generally transferred from the more proximal segments to the more distal segments.

What Is Biomechanics

Kinematic Concepts for Analyzing Human Motion

Kinetic Concepts for Analyzing Human Motion

The Biomechanics of Human Bone Growth and Development

The Biomechanics of Human Skeletal Articulations

The Biomechanics of Human Skeletal Muscle

The Biomechanics of the Human Upper Extremity

The Biomechanics of the Human Lower Extremity

The Biomechanics of the Human Spine

Linear Kinematics of Human Movement

Angular Kinematics of Human Movement

Linear Kinetics of Human Movement

Equilibrium and Human Movement

Human Movement in a Fluid Medium

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Exam 14: Angular Kinetics of Human Movement

Why do sprint coaches stress "heel to buttocks" during sprinting?

Which of the following accurately describes the radius of gyration of the forearm segment?

If an airborne performer wishes to maximize the number of revolutions she spins, she should extend the limbs as far from the axis of rotation as possible.

Which of the following is/are accurate formula(s) for angular momentum?

Which of the following are accurate units for centripetal force?

Where is radius of gyration located in relation to center of gravity (COG)?

Which of the following is/are most important factor(s) affecting the magnitude of centripetal force?

In the absence of external torque, which of the following will increase when moment of inertia decreases?

Which of the following are accurate units for moment of inertia?

Explain transfer of angular momentum using an example in sport, dance or rehabilitation.

Discuss the factors that affect moment of inertia, including examples.

The product of moment of inertia and angular velocity is ___________________ ___________________.

Which of the following variables contribute to moment of inertia?

Which of the following is known as "center-seeking" force?

Rotating around which of the following principal axes of rotation has the least moment of inertia (anatomical position)?

When a cyclist rounds a curve, where does centripetal force act?

Why does a figure skater cross his arms tightly across the chest when performing a quadruple axel?

Somersaulting occurs around which of the following axes of rotation?

How can a cyclist maintain balance when rounding a sharp curve?

During skilled performance of a throw or strike, momentum is generally transferred from the more proximal segments to the more distal segments.

What Is Biomechanics

Kinematic Concepts for Analyzing Human Motion

Kinetic Concepts for Analyzing Human Motion

The Biomechanics of Human Bone Growth and Development

The Biomechanics of Human Skeletal Articulations

The Biomechanics of Human Skeletal Muscle

The Biomechanics of the Human Upper Extremity

The Biomechanics of the Human Lower Extremity

The Biomechanics of the Human Spine

Linear Kinematics of Human Movement

Angular Kinematics of Human Movement

Linear Kinetics of Human Movement

Equilibrium and Human Movement

Human Movement in a Fluid Medium

Filters

The product of moment of inertia and angular velocity is _ _.