KIN 372 Biomechanics Exam 1
What is biomechanics? - Answer-application of mechanical principles to the study of living organisms
What are the main areas of biomechanical applications and movement-related goals? - Answer-injury
rehabilitation, injury prevention, and performance enhancement
What are some of the movement factors most commonly evaluated or assessed in biomechanics? -
Answer-technique, equipment, training, and environment
Define kinematics - Answer-the form, pattern, or sequencing of movement with respect to time
(description of motion)
Define kinetics - Answer-the study of the action of forces (cause of motion)
What is the difference between kinematics and kinetics? - Answer-kinematics is the description of a
motion and kinetics is the cause of a motion
Which scientist is responsible for providing the Laws of Motion in a text entitled Philosophiae Naturalis
Principia Mathematica? - Answer-Isaac Newton
,Which scientist is responsible for making a major contribution toward quantifying gravity? - Answer-
Galileo Galilei
Which scientist is responsible for making a major contribution toward providing detailed images of
human anatomy and assisted with defining the process of human dissections? - Answer-Andreas
Vesalius
Which scientist is considered the Father of Biomechanics? - Answer-Giovanni Alfonso Borelli
what is the mechanical system? - Answer-a body or a portion of a body that is deliberately chosen as
the system to be analyzed
Center of Mass (CoM) - Answer-the point about which all mass is said to act
Center of Gravity (CoG) - Answer-the projection of the location of the CoM to the support surface
Balance - Answer-the ability to maintain the body center of gravity over its base of support
Distance - Answer-the path length of which an object moves
stability - Answer-the ability to return to a desired position or trajectory following a disturbance
Motion - Answer-the act or process of changing place or position with respect to some reference object
in order for movement to occur, the two things that are necessary are ______ - Answer-space to move
in, and time during which to move
, motion is ______ - Answer-relative
what are the two classifications of motion? - Answer-linear motion and angular motion
the combination of linear and angular motion is called _______ - Answer-general motion
linear motion - Answer--occurs when all points on a body or object move the same distance, in the
same direction, and at the same time (also called translation or translatory motion)
-rectilinear and curvilinear motion
rectilinear motion - Answer-straight-line translation (no change in direction or orientation)
curvilinear motion - Answer-curved translation (direction of motion is constantly changing but no
change in orientation)
angular motion - Answer--occurs when all points on a body or object move in circles (or parts of circles)
about the same fixed central line or axis (also called rotation or rotary motion)
--Can occur about an axis within the body or an axis outside of the body
--Object or body part acts as a radius and rotates moves about a fixed point
--Uses angles expressed as either radians or degrees
circular motion - Answer--a special form of curvilinear motion; classified under linear motion
-Object moves along the circumference of a circle
-Moves in a curved path of constant radius
circular motion describes ____ - Answer-the linear motion of any point on the radius
What is biomechanics? - Answer-application of mechanical principles to the study of living organisms
What are the main areas of biomechanical applications and movement-related goals? - Answer-injury
rehabilitation, injury prevention, and performance enhancement
What are some of the movement factors most commonly evaluated or assessed in biomechanics? -
Answer-technique, equipment, training, and environment
Define kinematics - Answer-the form, pattern, or sequencing of movement with respect to time
(description of motion)
Define kinetics - Answer-the study of the action of forces (cause of motion)
What is the difference between kinematics and kinetics? - Answer-kinematics is the description of a
motion and kinetics is the cause of a motion
Which scientist is responsible for providing the Laws of Motion in a text entitled Philosophiae Naturalis
Principia Mathematica? - Answer-Isaac Newton
,Which scientist is responsible for making a major contribution toward quantifying gravity? - Answer-
Galileo Galilei
Which scientist is responsible for making a major contribution toward providing detailed images of
human anatomy and assisted with defining the process of human dissections? - Answer-Andreas
Vesalius
Which scientist is considered the Father of Biomechanics? - Answer-Giovanni Alfonso Borelli
what is the mechanical system? - Answer-a body or a portion of a body that is deliberately chosen as
the system to be analyzed
Center of Mass (CoM) - Answer-the point about which all mass is said to act
Center of Gravity (CoG) - Answer-the projection of the location of the CoM to the support surface
Balance - Answer-the ability to maintain the body center of gravity over its base of support
Distance - Answer-the path length of which an object moves
stability - Answer-the ability to return to a desired position or trajectory following a disturbance
Motion - Answer-the act or process of changing place or position with respect to some reference object
in order for movement to occur, the two things that are necessary are ______ - Answer-space to move
in, and time during which to move
, motion is ______ - Answer-relative
what are the two classifications of motion? - Answer-linear motion and angular motion
the combination of linear and angular motion is called _______ - Answer-general motion
linear motion - Answer--occurs when all points on a body or object move the same distance, in the
same direction, and at the same time (also called translation or translatory motion)
-rectilinear and curvilinear motion
rectilinear motion - Answer-straight-line translation (no change in direction or orientation)
curvilinear motion - Answer-curved translation (direction of motion is constantly changing but no
change in orientation)
angular motion - Answer--occurs when all points on a body or object move in circles (or parts of circles)
about the same fixed central line or axis (also called rotation or rotary motion)
--Can occur about an axis within the body or an axis outside of the body
--Object or body part acts as a radius and rotates moves about a fixed point
--Uses angles expressed as either radians or degrees
circular motion - Answer--a special form of curvilinear motion; classified under linear motion
-Object moves along the circumference of a circle
-Moves in a curved path of constant radius
circular motion describes ____ - Answer-the linear motion of any point on the radius
