Biomechanics of Human Movement: Master the Science of Movement

Question 1

Which concept is NOT fundamental to the analysis of human movement?

Accepted Answer

Skill

Answer

Displacement

Answer

Force

Answer

Velocity

Question 2

Which technique is used to measure the electrical activity of muscles during movement?

Accepted Answer

Electromyography (EMG)

Answer

Kinematic analysis

Answer

Kinetic analysis

Answer

Gait analysis

Question 3

Which factor does NOT affect the moment of force acting on a joint?

Accepted Answer

Velocity of the object

Answer

Distance from the joint's axis of rotation to the force application point

Answer

Magnitude of the applied force

Answer

Direction of the applied force

Question 4

Which technique is specifically used to measure muscle activity, as opposed to joint movement?

Accepted Answer

Electromyography

Answer

Goniometry

Answer

Motion capture

Answer

Inertial sensors

Question 5

Which of the following is not a recognized type of lever in the human body?

Accepted Answer

Fourth-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 6

Which of the following is NOT a recognized type of lever in human movement?

Accepted Answer

Fourth-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 7

In human biomechanics, which of the following is NOT a lever classification based on the relative positions of the fulcrum, effort, and load?

Accepted Answer

Double-lever system

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 8

Which of the following is NOT a recognized type of lever in human biomechanics?

Accepted Answer

Fourth-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 9

A limitation of biomechanical modeling is that:

Accepted Answer

Models often simplify the human body, potentially leading to inaccuracies.

Answer

Models are typically expensive and difficult to develop.

Answer

Models are only applicable to a limited range of movements.

Answer

Models are always highly accurate and reliable.

Question 10

Which fundamental principle underpins the application of biomechanics to the human body?

Accepted Answer

The principles of physics govern the mechanics of the human body.

Answer

The human body is a closed system, isolated from energy and matter exchange.

Answer

The human body maintains equilibrium except during dynamic movements.

Answer

The human body is a rigid structure, incapable of deformation.

Question 11

In biomechanics, which type of analysis is NOT commonly used?

Accepted Answer

Statistical analysis

Answer

Kinematic analysis

Answer

Kinetic analysis

Answer

Dynamic analysis

Question 12

Which of the following systems is NOT commonly used to measure joint kinematics (angular motion)?

Accepted Answer

Accelerometry

Answer

Goniometry

Answer

Electrogoniometry

Answer

Video analysis

Question 13

In a study of a baseball pitcher's kinematics using motion capture, what data is collected?

Accepted Answer

Joint angles and velocities

Answer

Muscle activation patterns

Answer

Ground reaction forces

Answer

Electromyography (EMG) signals

Question 14

Which of the following is not a recognized type of lever in human movement?

Accepted Answer

Fourth-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 15

Which lever type is absent in the human body?

Accepted Answer

Fourth-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 16

Which force is typically absent during everyday human activities?

Accepted Answer

Centripetal force

Answer

Gravity

Answer

Friction

Answer

Normal force

Question 17

Which of the following is not a recognized type of lever in the human body?

Accepted Answer

Fourth-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 18

Within the realm of human movement biomechanics, which lever classification is not recognized?

Accepted Answer

Fourth-class lever

Answer

First-class lever

Answer

Second-class lever

Answer

Third-class lever

Question 19

In biomechanics, which technique is specifically employed to measure muscle activity, as opposed to kinematic data?

Accepted Answer

Electromyography (EMG)

Answer

Motion capture

Answer

Gait analysis

Answer

Video analysis

Question 20

Which of the following is NOT a primary type of biomechanical analysis used to study human movement?

Accepted Answer

Morphological analysis

Answer

Kinematic analysis

Answer

Kinetic analysis

Answer

EMG analysis

Question 21

In a biomechanics study using motion capture, which techniques can be employed to improve the accuracy and precision of the collected data?

Accepted Answer

Utilizing multiple cameras for data capture from various angles

Accepted Answer

Increasing the frame rate of the cameras

Accepted Answer

Using densely placed reflective markers on the subject's body

Answer

Reducing the resolution of captured images to minimize file size

Question 22

Which of the following is NOT a biomechanical modeling technique used to analyze human movement?

Accepted Answer

Electromyography (EMG)

Answer

Inverse dynamics

Answer

Forward dynamics

Answer

Kinematic modeling

Question 23

Which of the following is NOT an advantage of employing biomechanical analysis in sports?

Accepted Answer

Increased skill transferability

Answer

Enhanced performance

Answer

Reduced injury risk

Answer

Improved rehabilitation

Question 24

In biomechanics, which statement best explains the relationship between kinematics and kinetics?

Accepted Answer

Kinematics describes motion without considering forces, while kinetics analyzes forces that cause motion.

Answer

Kinematics and kinetics are unrelated concepts.

Answer

Kinetics describes motion without considering forces, while kinematics analyzes forces that cause motion.

Answer

Kinematics and kinetics are interchangeable terms in biomechanics.

Question 25

Optimized: The center of mass represents the hypothetical point where an object's mass is concentrated. How does its location impact human movement?

Accepted Answer

Revised: For optimal stability, the center of mass should be positioned as close to the ground as possible.

Answer

The center of mass's location has no influence on human movement.

Answer

The center of mass should be positioned as far from the body as possible for increased mobility.

Answer

The center of mass's location is only relevant in static postures.

Question 26

The center of mass, also known as the center of gravity, is the point where the entire mass of a body is concentrated. How does the location of the center of mass influence human movement?

Accepted Answer

It determines the line of action of the gravitational force acting on the body.

Accepted Answer

It is synonymous with the center of gravity.

Answer

It has no impact on the body's stability.

Answer

It is always located at the anatomical center of the body.

Question 27

In biomechanics, how do the concepts of kinematics and kinetics differ?

Accepted Answer

Kinematics describes motion without considering forces, while kinetics analyzes forces and their effects on motion.

Answer

Kinematics and kinetics are completely separate areas of biomechanics.

Answer

Kinetics describes motion without considering forces, while kinematics analyzes forces and their effects on motion.

Answer

Kinematics and kinetics are interchangeable terms in biomechanics.

Question 28

Which of the following is NOT a primary method for analyzing human movement biomechanics?

Accepted Answer

Electromyography (EMG)

Answer

Kinematic analysis

Answer

Kinetic analysis

Answer

Inverse dynamics

Question 29

Which term describes the study of the forces that act on a body in motion?

Accepted Answer

Kinetics

Answer

Kinematics

Answer

Dynamics

Answer

Ergonomics

Question 30

The property of an object to resist changes in its motion is known as:

Accepted Answer

Inertia

Answer

Momentum

Answer

Impulse

Answer

Energy

Question 31

The branch of biomechanics that applies biomechanical principles to improve athletic performance is known as:

Accepted Answer

Sport biomechanics

Answer

Exercise biomechanics

Answer

Clinical biomechanics

Answer

Forensic biomechanics

Question 32

Which of the following is an inherent limitation of biomechanical analysis in sports?

Accepted Answer

Inherent sources of error

Answer

Enhanced performance

Answer

Reduced risk of injury

Answer

Improved rehabilitation

Question 33

Which method is NOT primarily employed to measure foot contact time during gait analysis?

Accepted Answer

Electromyography (EMG)

Answer

Force platforms

Answer

Accelerometers

Answer

Video analysis

Question 34

Which of the following is the study of the forces that act on the human body during movement?

Accepted Answer

Kinetics

Answer

Kinematics

Answer

Dynamics

Answer

Anthropometry

Question 35

The principle of conservation of angular momentum states that:

Accepted Answer

The total angular momentum of a system remains constant

Answer

The angular acceleration of an object is proportional to the net torque acting on it

Answer

The moment of inertia of a body is constant

Answer

The work done by a force is equal to the change in kinetic energy

Question 36

Which factor is not used to calculate the angular momentum of a rotating body?

Accepted Answer

Linear acceleration

Answer

Mass of the object

Answer

Angular velocity

Answer

Radius of rotation

Question 37

The lever arm of a force is defined as:

Accepted Answer

The perpendicular distance from the force's line of action to the axis of rotation

Answer

The distance from the force's point of application to the fulcrum

Answer

The product of the force's magnitude and its distance from the axis of rotation

Answer

The angle between the force vector and the lever arm

Question 38

Which of the following is not a force that can act on the human body during movement?

Accepted Answer

Centripetal force

Answer

Gravity

Answer

Friction

Answer

Tension

Question 39

Which of the following is a fundamental ethical consideration for researchers conducting biomechanical studies involving human participants?

Accepted Answer

Obtaining informed consent from participants

Answer

Employing deceptive methods to gather data

Answer

Prioritizing research objectives over participant safety

Answer

Disregarding potential conflicts of interest

Question 40

Which type of joint provides the greatest freedom of movement, allowing for a wide range of motions?

Accepted Answer

Ball-and-socket joint

Answer

Hinge joint

Answer

Condyloid joint

Answer

Pivot joint

Question 41

What is the technical term for the force exerted by a muscle on a bone, which plays a crucial role in movement?

Accepted Answer

Tension

Answer

Moment

Answer

Torque

Answer

Compression

Question 42

According to the principle of conservation of angular momentum, what remains constant in a system unless acted upon by an external torque?

Accepted Answer

Total angular momentum of the system

Answer

Linear momentum of the system

Answer

Kinetic energy of the system

Answer

Potential energy of the system

Question 43

Which of the following techniques is commonly employed to accurately measure joint angles, providing valuable data for biomechanical analysis?

Accepted Answer

Goniometry

Answer

Electromyography

Answer

Force plate

Answer

Accelerometer

Question 44

What is the term for the perpendicular distance from the axis of rotation to the line of action of a force?

Accepted Answer

Moment arm

Answer

Power

Answer

Impulse

Answer

Torque

Question 45

Which of the following equations represents Newton's second law of motion, where F is the resultant force, m is the mass of the object, and a is the acceleration produced?

Accepted Answer

F = ma

Answer

F = kx

Answer

W = Fd

Answer

P = IV

Question 46

Which of the following types of joints allows for the greatest range of motion?

Accepted Answer

Ball-and-socket joint

Answer

Saddle joint

Answer

Pivot joint

Answer

Hinge joint

Question 47

What is the role of the center of mass in human movement?

Accepted Answer

It is the point at which the total mass of the body can be considered to be concentrated for the purpose of analysis and calculations.

Answer

It is the point at which the body's momentum is greatest during movement.

Answer

It is the point at which the body's weight is evenly distributed.

Question 48

What is the fundamental difference between internal and external forces acting on the human body?

Accepted Answer

Internal forces are generated within the body by muscles and other structures, while external forces are applied to the body from its surroundings.

Answer

Internal forces can only cause acceleration, while external forces can only cause velocity changes.

Answer

Internal forces always act in pairs, while external forces do not.

Question 49

Which of the following is a commonly used tool for measuring joint angles in biomechanics?

Accepted Answer

Goniometer

Answer

Accelerometer

Answer

Electromyography

Answer

Force plate

Question 50

What is the significance of the moment of inertia in the study of biomechanics?

Accepted Answer

It is a measure of the resistance of a body to changes in its angular velocity, which is important in understanding rotational motion and balance.

Answer

It is a measure of the energy stored in a rotating system.

Answer

It is the measurement of the force required to accelerate a mass.

Question 51

Which force acts perpendicular to the surface of contact?

Accepted Answer

Normal force

Answer

Gravitational force

Answer

Tangential force

Answer

Frictional force

Question 52

Which fundamental principle of biomechanics states that an object at rest tends to remain at rest, and an object in motion tends to stay in motion with the same speed and in a straight line unless acted upon by an unbalanced force?

Accepted Answer

The principle of inertia

Answer

The principle of momentum

Answer

The principle of leverage

Answer

The principle of energy conservation

Question 53

Which concept is a measure of the resistance of an object to acceleration?

Accepted Answer

Mass

Answer

Force

Answer

Acceleration

Answer

Velocity

Question 54

In which type of lever is the fulcrum located between the effort and the load?

Accepted Answer

Second-class lever

Answer

First-class lever

Answer

Fourth-class lever

Answer

Third-class lever

Question 55

Which type of muscle contraction occurs when the muscle lengthens?

Accepted Answer

Eccentric contraction

Answer

Isometric contraction

Answer

Isokinetic contraction

Answer

Concentric contraction

Question 56

Which unit of measurement is used to quantify the work done by a force?

Accepted Answer

Joule

Answer

Newton

Answer

Watt

Question 57

Which of these kinematic variables describes the change in position of a body with respect to time?

Accepted Answer

Displacement

Answer

Momentum

Answer

Velocity

Answer

Acceleration

Question 58

Which of the following factors does NOT influence the range of motion of a joint?

Accepted Answer

Age

Answer

Joint structure

Answer

Ligament length

Answer

Muscle flexibility

Question 59

According to the principle of conservation of momentum applied to human movement, the:

Accepted Answer

Total momentum of a closed system remains constant

Answer

Total force acting on a closed system is zero

Answer

Total energy of a closed system remains constant

Question 60

Which lever type provides the greatest mechanical advantage?

Accepted Answer

First-class lever

Answer

Third-class lever

Answer

Second-class lever

Answer

All levers provide the same mechanical advantage

Question 61

In the context of levers, the angle between the line of action of a force and the moment arm is called the:

Accepted Answer

Moment arm angle

Answer

Force angle

Answer

Lever arm angle

Answer

Fulcrum angle

Question 62

The primary function of the cerebellum in the context of human movement is to control:

Accepted Answer

Coordination and balance

Answer

Memory

Answer

Voluntary movement

Answer

Reflexes

Question 63

Which tool is most commonly used to measure joint angles accurately during movement analysis?

Accepted Answer

Goniometer

Answer

Calipers

Answer

Tape measure

Answer

Ruler

Question 64

How can the application of biomechanics principles in sports science be beneficial?

Accepted Answer

Enhancing performance and preventing injuries

Answer

Neither enhancing performance nor preventing injuries

Answer

Only preventing injuries

Answer

Only enhancing performance