KINE 1301 Chapter 6

True or False: In the context of kinetics, the greater the mass of an object, the lesser the force needed to produce acceleration

False

Match the type of lever with its relationship with the fulcrum

First-class level: The fulcrum is located between the weight and point of application of force Second-class level" The weight is between the fulcrum and the force Third-class lever: The force is between the fulcrum and the weight

______ is the effect that one body has on another.

Force

Identify the physiological components involved in kinesiology.

Functions of muscles Structure of muscles Skeletal framework

Which of the following statements best illustrates that a change in velocity of an object is directly proportional to the force producing it?

The heavier the object, the more force needed to speed it up.

Identify the principle of stability based on the distance between the center of gravity and the base support.

The lower the center of gravity is to the base of support, the greater the stability.

An increase in speed is proportional to the amount of force that is applied. Which law of motion does this describe?

A change in velocity of an object is directly proportional to the force producing it and inversely. proportional to the object's mass

Which of the following illustrates that the wider the base of support is, the greater the stability?

A man standing with his feet apart

Which of the following illustrates the principle of stability, which states that the lower the center of gravity is to the base of support, the greater the stability?

A wrestler taking a semicrouched position

Identify the different instruments that are used in biomechanical research

An isokinetic dynamometer An electroencephalograph An electrogoniometer

Which of the following statements best illustrates an advantage for a coach with knowledge of biomechanics?

Andrew corrects the physical movement of a member in his team to help him optimize performance.

______ is thought to have been one of the first scholars to study the muscles and motions of the human body, which he described in his book De Moto Animalium On the Movement of Animals.

Aristotle

In the context of Wilkerson's description of the 1960s as the beginning of a new era in the development and growth of biomechanics, which of the following is a true statement?

Biomechanics emphasized the study of anatomical and mechanical aspects of human movement

______ is the study of the movement patterns of people who are injured or who have a disability.

Clinical biomechanics

______ focuses on studying movement patterns and how they change across the lifespan, from infancy to old age and with people with disabilities

Developmental biomechanics

Identify the important purposes for the study of kinesiology according to Hamilton and Luttgens.

Efficiency Safety Effectiveness

Maurice coaches a junior baseball team. He notices that one of his team's pitchers is straining his backbone excessively, when throwing the ball. After a detailed analysis of the throwing pattern, Maurice advises the pitcher to stay upright while pitching. Which of the following is most likely to have helped Maurice identify the potential hazard?

His knowledge of biomechanics

In the context of kinetics, match the different types of energy with their description

Kinetic energy: It refers to the energy a body has because it is moving Potential energy: It refers to the energy that accrues as a result of the position that a body occupies relative to the earth's surface

Identify the time period of the kinesiology era in the United States

Late 1800s to 1960 AD

Match the type of motion with its description

Linear Motion: it refers to movement in a straight line and from one point to another Rotary Motion: it consists of movement of a body about a center of rotation, called the axis

Match the type of motion with its decision

Linear motion: It refers to movement in a straight line and from one point to another. Rotary motion: It consists of movement of body about a center of rotation, called the axis.

Identify the important purposes for the study of kinesiology according to Hamilton and Luttgens

Safety Effectiveness Efficiency

______ is. the body's ability to return to a position of equilibrium after it has been displaced.

Stability

Match the type of equilibrium with the appropriate activity.

Static equilibrium: Sitting Dynamic equilibrium: Running

Match the type of equilibrium with its description

Static equilibrium: occurs when the center of gravity is in a stable position Dynamic equilibrium: is a state in which the center of gravity is in motion

True or False: Clinical biomechanics helps professionals understand how the injury or disability has altered the normal movement pattern of individuals

True

True or False: Kinesiology is the study of neuromuscular movement

True

True or False: Professionals can use biomechanical principles of exercise to make sure individuals are performing an exercise correctly and achieving maximum benefits

True

Match the terms related to kinematics with their descriptions

Velocity: it refers to the speed and direction of a body and involves the change of position of a body per unit of time Acceleration: it refers to the change in velocity over time Angular Velocity: it is the angle that is rotated in a given unit of time Angular Acceleration: it refers to the change of angular velocity for a unit of time

Identify an activity that is in the focus of developmental biomechanics

Walking

Which of the following statements illustrates Newtons third law of motion?

When one pushes an object, it pushes back

During the early foundation of the growth of biomechanics, the term kinesiology was used to refer to the _______

application of mechanics to the study of movement

In the context of the principles that govern a human body's ability to maintain stability or balance, when the center of gravity extends beyond the boundaries of the base of support, ______

balance is lost

A subdiscipline of kinesiology that focuses on the application of the scientific principles of mechanics to understand movements and actions of human bodies and sport implements is called ______

biomechanics

In the context of kinetics, ______ is the amount of matter possessed by an object

mass

In the human body, the center of mass is known as the ______

center of gravity

The ______ is the point at which all of the mass of a human body seems to be located and the point about which an object would balance.

center of gravity

In the context of kinetics, ______ is a force that occurs when surfaces come in contact and results when the surfaces move past each other.

friction

In the context of kinetics, ______ relates to the capacity of a body to perform work

energy

In the context of kinetics, ______ is any action that changes or tends to change the motion of an object.

force

In the United States, starting in the late 1800s, the term kinesiology was used to refer to the science of applying ______ to the study of movement.

mechanics

The term kinesiology is derived from the Greek kinesi, meaning ______

motion

In the context of Sir Issac Newton's first law of motion, if an applied force is less than the resistive force offered by an object, ______

motion will not occur

In the context of the principles that govern a human body's ability to maintain stability or balance, the nearer the center of gravity is to the center of the base of support, ______

the more stable the body

In the context of the selected biomechanical terms related to human motion, ______ represents a twisting, turning, or rotary force related to the production of angular acceleration.

torque

Biomechanics in motion are continually changing position, so the degree to which a body's position changes within a definite time span is measured to determine its ______

velocity

The ______ the base of support is, the greater the stability

wider