Question 1

Choose the term that describes the rotary effect of a force.

Accepted Answer

A) stability 
B) static equilibrium 
C) third-class lever 
D) torque 
A) stability 
B) static equilibrium 
C) third-class lever 
D) torque D

Question 2

What is the proposed advantage of Nautilus resistance equipment over free weights?

Accepted Answer

A) resistance varies over the range of motion with Nautilus equipment 
B) resistance varies over the range of motion with free weights 
C) muscle force requirements change over the range of motion with Nautilus equipment 
D) none of these answers is correct 
A) resistance varies over the range of motion with Nautilus equipment 
B) resistance varies over the range of motion with free weights 
C) muscle force requirements change over the range of motion with Nautilus equipment 
D) none of these answers is correct A

Question 3

The amount of torque which must by generated by the biceps brachii at the elbow in order to maintain the arm in a particular position is 50 Nm. If the biceps attaches to the radius at a perpendicular distance of 3 cm from the joint center at the elbow,how much force must the muscle produce?

Accepted Answer

A) 1667 N 
B) 17 N 
C) 150 N 
D) 1)5 N 
A) 1667 N 
B) 17 N 
C) 150 N 
D) 1)5 N A

Question 4

Which of the following must be true for an object to be in a state of static equilibrium?

Accepted Answer

A) the sum of all vertical forces acting on the object must be equal to zero 
B) the sum of all horizontal forces acting on the object must be equal to zero 
C) the sum of all torques acting on the object must be equal to zero 
D) all of these answers are correct 
A) the sum of all vertical forces acting on the object must be equal to zero 
B) the sum of all horizontal forces acting on the object must be equal to zero 
C) the sum of all torques acting on the object must be equal to zero 
D) all of these answers are correct

Question 5

A motionless body is in a state of static equilibrium.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following phrases is/are synonymous with torque?

Accepted Answer

A) moment of force 
B) rotary force 
C) moment arm 
D) both moment of force and rotary force 
E) all of these answers are correct 
A) moment of force 
B) rotary force 
C) moment arm 
D) both moment of force and rotary force 
E) all of these answers are correct

Question 7

Choose the term that describes the point around which the weight of a body is balanced.

Accepted Answer

A) mass centroid 
B) center of gravity 
C) couple 
D) D'Alembert's principle 
A) mass centroid 
B) center of gravity 
C) couple 
D) D'Alembert's principle

Question 8

In analyzing the human body as a projectile,which of the following quantities follows a parabolic path?

Accepted Answer

A) the center of mass 
B) the center of volume 
C) the navel 
D) this varies with the individual performance 
A) the center of mass 
B) the center of volume 
C) the navel 
D) this varies with the individual performance

Question 9

A wheelbarrow is an example of which class of lever?

Accepted Answer

A) 1st class 
B) 2nd class 
C) 3rd class 
D) not a lever 
A) 1st class 
B) 2nd class 
C) 3rd class 
D) not a lever

Question 10

Torque is the product of force and the perpendicular distance from the force to the axis,also known as the ________ ________.

Accepted Answer

The answer of Torque is the product of force and...

Question 11

The ratio of force arm to resistance arm defines ________ ________.

Accepted Answer

mechanical

Question 12

The center of gravity of an object is always located within the object.

Accepted Answer

A) True 
 B)False

Question 13

Choose the term that describes a simple machine consisting of a rigid bar that may rotate around an axis.

Accepted Answer

A) first-class lever 
B) second-class lever 
C) lever 
D) third-class lever 
A) first-class lever 
B) second-class lever 
C) lever 
D) third-class lever

Question 14

The ability to control equilibrium defines ________.

Accepted Answer

The answer of The ability to control equilibrium defines ________....

Question 15

When the elbow is extended and the elbow flexors contract,which of the component forces acts in addition to the rotary component?

Accepted Answer

A) the stabilizing component of muscle force 
B) the dislocating component of muscle force 
C) both the stabilizing component of muscle force and the dislocating component of muscle force 
D) none of these answers is correct 
A) the stabilizing component of muscle force 
B) the dislocating component of muscle force 
C) both the stabilizing component of muscle force and the dislocating component of muscle force 
D) none of these answers is correct

Question 16

Running barefoot results in higher joint torque at the knee than using running shoes.

Accepted Answer

A) True 
 B)False

Question 17

A seesaw is an example of which class of lever?

Accepted Answer

A) 1st class 
B) 2nd class 
C) 3rd class 
D) not a lever 
A) 1st class 
B) 2nd class 
C) 3rd class 
D) not a lever

Question 18

Why do skilled high jumpers lower their COM on the last step?

Accepted Answer

A) to increase time of support between foot and ground 
B) to increase vertical velocity at take-off 
C) to increase impulse at take-off 
D) both to increase time of support between foot and ground and to increase vertical velocity at take-off 
E) all of these answers are correct 
A) to increase time of support between foot and ground 
B) to increase vertical velocity at take-off 
C) to increase impulse at take-off 
D) both to increase time of support between foot and ground and to increase vertical velocity at take-off 
E) all of these answers are correct

Question 19

Which statement is true regarding moment arm?

Accepted Answer

A) Moment arm is largest when the angle of pull on a bone is 90°. 
B) Changes in moment arm directly affect joint muscle torque. 
C) For torque to remain constant,more force must be produced when moment arm decreases. 
D) Both moment arm is largest when the angle of pull on a bone is 90° and changes in moment arm directly affect joint muscle torque. 
E) All of these answers are correct. 
A) Moment arm is largest when the angle of pull on a bone is 90°. 
B) Changes in moment arm directly affect joint muscle torque. 
C) For torque to remain constant,more force must be produced when moment arm decreases. 
D) Both moment arm is largest when the angle of pull on a bone is 90° and changes in moment arm directly affect joint muscle torque. 
E) All of these answers are correct.

Question 20

Choose the term that describes the lever positioned with the applied force and the resistance on opposite sides of the axis.

Accepted Answer

A) lever 
B) second-class lever 
C) first-class lever 
D) third-class lever 
A) lever 
B) second-class lever 
C) first-class lever 
D) third-class lever

Choose the term that describes the rotary effect of a force.

What is the proposed advantage of Nautilus resistance equipment over free weights?

The amount of torque which must by generated by the biceps brachii at the elbow in order to maintain the arm in a particular position is 50 Nm. If the biceps attaches to the radius at a perpendicular distance of 3 cm from the joint center at the elbow,how much force must the muscle produce?

Which of the following must be true for an object to be in a state of static equilibrium?

A motionless body is in a state of static equilibrium.

Which of the following phrases is/are synonymous with torque?

Choose the term that describes the point around which the weight of a body is balanced.

In analyzing the human body as a projectile,which of the following quantities follows a parabolic path?

A wheelbarrow is an example of which class of lever?

Torque is the product of force and the perpendicular distance from the force to the axis,also known as the .

The ratio of force arm to resistance arm defines .

The center of gravity of an object is always located within the object.

Choose the term that describes a simple machine consisting of a rigid bar that may rotate around an axis.

The ability to control equilibrium defines ________.

When the elbow is extended and the elbow flexors contract,which of the component forces acts in addition to the rotary component?

Running barefoot results in higher joint torque at the knee than using running shoes.

A seesaw is an example of which class of lever?

Why do skilled high jumpers lower their COM on the last step?

Which statement is true regarding moment arm?

Choose the term that describes the lever positioned with the applied force and the resistance on opposite sides of the axis.

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

Angular Kinetics of Human Movement

Human Movement in a Fluid Medium

Filters

Exam 13: Equilibrium and Human Movement

Choose the term that describes the rotary effect of a force.

What is the proposed advantage of Nautilus resistance equipment over free weights?

The amount of torque which must by generated by the biceps brachii at the elbow in order to maintain the arm in a particular position is 50 Nm. If the biceps attaches to the radius at a perpendicular distance of 3 cm from the joint center at the elbow,how much force must the muscle produce?

Which of the following must be true for an object to be in a state of static equilibrium?

A motionless body is in a state of static equilibrium.

Which of the following phrases is/are synonymous with torque?

Choose the term that describes the point around which the weight of a body is balanced.

In analyzing the human body as a projectile,which of the following quantities follows a parabolic path?

A wheelbarrow is an example of which class of lever?

Torque is the product of force and the perpendicular distance from the force to the axis,also known as the ________ ________.

The ratio of force arm to resistance arm defines ________ ________.

The center of gravity of an object is always located within the object.

Choose the term that describes a simple machine consisting of a rigid bar that may rotate around an axis.

The ability to control equilibrium defines ________.

When the elbow is extended and the elbow flexors contract,which of the component forces acts in addition to the rotary component?

Running barefoot results in higher joint torque at the knee than using running shoes.

A seesaw is an example of which class of lever?

Why do skilled high jumpers lower their COM on the last step?

Which statement is true regarding moment arm?

Choose the term that describes the lever positioned with the applied force and the resistance on opposite sides of the axis.

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

Angular Kinetics of Human Movement

Human Movement in a Fluid Medium

Filters

Torque is the product of force and the perpendicular distance from the force to the axis,also known as the .

The ratio of force arm to resistance arm defines .