Question 1

Cyclists drafting will minimize form drag.

Accepted Answer

A) True 
 B)False  True

Question 2

Which of the following terms describes a force acting on a body in a fluid in a direction perpendicular to the fluid flow?

Accepted Answer

A) wave drag 
B) surface drag 
C) form drag 
D) lift 
A) wave drag 
B) surface drag 
C) form drag 
D) lift D

Question 3

Flow that is characterized by smooth,parallel layers of fluid is called ________ flow.

Accepted Answer

laminar

Question 4

Which of the following factors affects skin friction drag?

Accepted Answer

A) increase in the relative velocity of fluid flow 
B) the surface area of the body over which the flow occurs 
C) the viscosity of the fluid 
D) all of these answers are correct 
A) increase in the relative velocity of fluid flow 
B) the surface area of the body over which the flow occurs 
C) the viscosity of the fluid 
D) all of these answers are correct

Question 5

Which of the following factors that affect skin drag,can athletes usually alter?

Accepted Answer

A) roughness of the body surface 
B) amount of surface area in contact with the fluid 
C) viscosity of the fluid 
D) both roughness of the body surface and amount of surface area in contact with the fluid 
E) all of these answers are correct 
A) roughness of the body surface 
B) amount of surface area in contact with the fluid 
C) viscosity of the fluid 
D) both roughness of the body surface and amount of surface area in contact with the fluid 
E) all of these answers are correct

Question 6

A buoyant force is always directed vertically upward.

Accepted Answer

A) True 
 B)False

Question 7

Choose the term that describes the resistance derived from friction between adjacent layers of fluid near a body moving through the fluid.

Accepted Answer

A) surface drag 
B) pressure drag 
C) form drag 
D) wave drag 
A) surface drag 
B) pressure drag 
C) form drag 
D) wave drag

Question 8

If weight is equal to buoyant force,a body will sink.

Accepted Answer

A) True 
 B)False

Question 9

Relative velocity of the fluid affects which of the following?

Accepted Answer

A) skin friction 
B) wave drag 
C) lift force 
D) all of these answers are correct 
A) skin friction 
B) wave drag 
C) lift force 
D) all of these answers are correct

Question 10

The theoretical square law is related to which of the following?

Accepted Answer

A) friction 
B) lift force 
C) drag 
D) none of these answers is correct 
A) friction 
B) lift force 
C) drag 
D) none of these answers is correct

Question 11

Golf clubs are designed to impart backspin,which affects the ball in what way?

Accepted Answer

A) increase in flight time 
B) increase in range 
C) both increase in flight time and increase in range 
D) none of these answers is correct 
A) increase in flight time 
B) increase in range 
C) both increase in flight time and increase in range 
D) none of these answers is correct

Question 12

Which of the following describes the drag created by a pressure differential between the lead and rear sides of a body moving through a fluid?

Accepted Answer

A) form drag 
B) profile drag 
C) surface drag 
D) both form drag and profile drag 
A) form drag 
B) profile drag 
C) surface drag 
D) both form drag and profile drag

Question 13

Choose the term that describes the shape capable of generating lift in the presence of a fluid flow.

Accepted Answer

A) foil 
B) form drag 
C) pressure drag 
D) profile drag 
A) foil 
B) form drag 
C) pressure drag 
D) profile drag

Question 14

Choose the term that describes the substance that flows when subjected to shear stress.

Accepted Answer

A) coefficient of drag 
B) coefficient of lift 
C) fluid 
D) foil 
A) coefficient of drag 
B) coefficient of lift 
C) fluid 
D) foil

Question 15

Which type of fluid resistance is likely to be greatest on a swimmer in the ocean at a fast speed?

Accepted Answer

A) skin friction 
B) profile drag 
C) wave drag 
D) none of these answers is correct 
A) skin friction 
B) profile drag 
C) wave drag 
D) none of these answers is correct

Question 16

Which of the following is true regarding passive drag?

Accepted Answer

A) generated by a swimmer's body size,shape,and position in the water 
B) inversely related to a swimmer's buoyancy 
C) associated with the swimmer in motion 
D) both generated by a swimmer's body size,shape,and position in the water and inversely related to a swimmer's buoyancy 
E) all of these answers are correct 
A) generated by a swimmer's body size,shape,and position in the water 
B) inversely related to a swimmer's buoyancy 
C) associated with the swimmer in motion 
D) both generated by a swimmer's body size,shape,and position in the water and inversely related to a swimmer's buoyancy 
E) all of these answers are correct

Question 17

How do dimples on a golf ball reduce form drag?

Accepted Answer

A) produce a turbulent boundary layer 
B) produce a laminar boundary layer 
C) both produce a turbulent boundary layer and produce a laminar boundary layer 
D) dimples do not reduce form drag 
A) produce a turbulent boundary layer 
B) produce a laminar boundary layer 
C) both produce a turbulent boundary layer and produce a laminar boundary layer 
D) dimples do not reduce form drag

Question 18

A curve ball pitch follows which path?

Accepted Answer

A) straight line with sudden break at the end 
B) smooth arc 
C) can be either straight line with sudden break at the end or smooth arc 
D) none of these answers is correct 
A) straight line with sudden break at the end 
B) smooth arc 
C) can be either straight line with sudden break at the end or smooth arc 
D) none of these answers is correct

Question 19

The inverse relationship between relative velocity and relative pressure in a fluid is what?

Accepted Answer

A) Archimedes' principle 
B) Bernoulli principle 
C) Magnus principle 
D) None of these answers is correct 
A) Archimedes' principle 
B) Bernoulli principle 
C) Magnus principle 
D) None of these answers is correct

Question 20

Topspin on a tennis ball will have what effect?

Accepted Answer

A) Ball will drop sooner. 
B) Ball will rebound lower. 
C) Ball will rebound faster. 
D) Both ball will drop sooner and ball will rebound lower. 
E) All of these answers are correct. 
A) Ball will drop sooner. 
B) Ball will rebound lower. 
C) Ball will rebound faster. 
D) Both ball will drop sooner and ball will rebound lower. 
E) All of these answers are correct.

Cyclists drafting will minimize form drag.

Which of the following terms describes a force acting on a body in a fluid in a direction perpendicular to the fluid flow?

Flow that is characterized by smooth,parallel layers of fluid is called ________ flow.

Which of the following factors affects skin friction drag?

Which of the following factors that affect skin drag,can athletes usually alter?

A buoyant force is always directed vertically upward.

Choose the term that describes the resistance derived from friction between adjacent layers of fluid near a body moving through the fluid.

If weight is equal to buoyant force,a body will sink.

Relative velocity of the fluid affects which of the following?

The theoretical square law is related to which of the following?

Golf clubs are designed to impart backspin,which affects the ball in what way?

Which of the following describes the drag created by a pressure differential between the lead and rear sides of a body moving through a fluid?

Choose the term that describes the shape capable of generating lift in the presence of a fluid flow.

Choose the term that describes the substance that flows when subjected to shear stress.

Which type of fluid resistance is likely to be greatest on a swimmer in the ocean at a fast speed?

Which of the following is true regarding passive drag?

How do dimples on a golf ball reduce form drag?

A curve ball pitch follows which path?

The inverse relationship between relative velocity and relative pressure in a fluid is what?

Topspin on a tennis ball will have what effect?

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

Angular Kinetics of Human Movement

Filters

Exam 15: Human Movement in a Fluid Medium

Cyclists drafting will minimize form drag.

Which of the following terms describes a force acting on a body in a fluid in a direction perpendicular to the fluid flow?

Flow that is characterized by smooth,parallel layers of fluid is called ________ flow.

Which of the following factors affects skin friction drag?

Which of the following factors that affect skin drag,can athletes usually alter?

A buoyant force is always directed vertically upward.

Choose the term that describes the resistance derived from friction between adjacent layers of fluid near a body moving through the fluid.

If weight is equal to buoyant force,a body will sink.

Relative velocity of the fluid affects which of the following?

The theoretical square law is related to which of the following?

Golf clubs are designed to impart backspin,which affects the ball in what way?

Which of the following describes the drag created by a pressure differential between the lead and rear sides of a body moving through a fluid?

Choose the term that describes the shape capable of generating lift in the presence of a fluid flow.

Choose the term that describes the substance that flows when subjected to shear stress.

Which type of fluid resistance is likely to be greatest on a swimmer in the ocean at a fast speed?

Which of the following is true regarding passive drag?

How do dimples on a golf ball reduce form drag?

A curve ball pitch follows which path?

The inverse relationship between relative velocity and relative pressure in a fluid is what?

Topspin on a tennis ball will have what effect?

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

Angular Kinetics of Human Movement

Filters