HK 100 EXAM 1 QUESTIONS & ANSWERS
False - Answers :A motor unit consists of a muscle fiber and all the nerve fibers that
innervate it (True/false)
False - Answers :Skeletal muscle fibers are composed primarily of thick actin and thin
myosin proteins (true/false)
true - Answers :Concentric contractions involve muscle shortening (true/false)
true - Answers :When a muscle fiber contracts, the myosin filaments connect onto the
actin filaments and pull the actin toward the middle of the myosin (true/false)
eccentric - Answers :What type of muscular contraction is more likely than the other
types of muscular contractions to produce delayed onset muscular soreness?
false - Answers :Highly trained individuals will not experience an oxygen deficit when
they start exercising at a sub-max level (true/false)
heart rate and stroke volume - Answers :cardiac output is a function of what two
elements?
Respiratory rate and tidal volume - Answers :pulmonary ventilation is a function of what
two elements?
true - Answers :As a result of endurance training, a person's resting heart rate and
submit exercise heart rate decrease, but a person's maximal heart rate does not change
(true/false)
true - Answers :Endurance exercises training increases the number of capillaries in the
muscles as well as increases the size of the resistance and conduit arteries (true/false)
true - Answers :During maximal exercise, most of the blood flow goes to the working
muscles, rather than the brain, heart, skin, or other organs (true/false)
hypertrophy - Answers :strength training can result in an increase in muscle size. What
is this called?
Alfonso Borelli - Answers :Who is known as the father of biomechanics
Kinetics - Answers :Examining how gravity affects motion is a study of (kinetics of
kinematics)
Kinematics - Answers :A description of how stride length and step height varies
between people with arthritis and those without is a study of (kinematics or kinetics)
,True - Answers :Speed has to do with distance, while velocity has to do with
displacement (true or false)
acceleration - Answers :The rate at which an object changes its velocity is called what?
True - Answers :Two of the four characteristics of force are that it has direction and
magnitude (true or false)
inertia - Answers :A body at rest or in motion continues in that state unless acted upon
by an outside and unbalanced force. this is called Newton's Law of (what)?
mass and force - Answers :Newton's law of acceleration states that the acceleration of
an object is dependent on what two things?
phosphagen system - Answers :Which energy system provides the most rapid source of
ATP breakdown?
phosphagen and glycolytic - Answers :Which energy system/s does/do not use oxygen?
aerobic - Answers :In which energy system/s is/are fatty acids used?
aerobic - Answers :In which energy system/s is/are proteins used?
phosphagen, anaerobic, and aerobic - Answers :In which energy system/s is/are
carbohydrates used?
stroke volume - Answers :The amount of blood ejected from the heart per each heart
beat is called what?
slow twitch - Answers :What type of muscle fibers tend to be small, produce low levels
of force, be resistant to fatigue, and have a high oxidative capacity?
Newton's law of action-reaction - Answers :As you are standing on the ground, you are
exerting a force on the ground. At the same time, the ground is exerting an equal force
on you. This is illustrating which of Newton's Laws?
JJ Watt. He has a greater mass - Answers :So JJ Watt and Dr. B are both running down
hill at the same speed. Which one has the greatest momentum (if either of them) and
why?
exercise physiology - Answers :physiological system (cell/muscle/heart/lungs)
responding to movements of the body
biomechanics - Answers :science of physical principles applied to biological systems;
study of how skeletal/muscular systems work under different conditions
, motor behavior - Answers :movement behavior that is both physiological and
psychological
motor control - Answers :how neuromuscular system coordinates muscles/limbs
involved in motor skills
motor learning - Answers :acquisition of motor skills (includes discrete and continuous
tasks)
motor development - Answers :study of changes in human motor behavior over the
lifespan, the processes that underlie these changes, and factors that affect them
discrete task - Answers :do it and it's done task. Uses the central nervous system for
timing (Ex: tennis serve)
continuous task - Answers :you determine when it's done task. Uses the muscle/limbs
for timing (Ex: dribbling basketball)
sport and exercise psychology - Answers :study of human behavior and cognition
(thoughts) that is within the context of physical activity
sport psychology - Answers :psychology within sport/competition
exercise psychology - Answers :exercise adherence (sticking with it)
sport history - Answers :examines sports from educational, professional, and leisure
pastime perspectives. Historians examine the establishment of sporting institutions that
have moved sports from pastime activities for children to commercial enterprise.
sport philosophy - Answers :area of philosophy that seeks to conceptually analyze
issues of sport as human activity
motor unit - Answers :a nerve and the muscle fibers it innervates/ makes us move
fine movement - Answers :What type of movement does 1 neuron and a few muscle
fibers produce?
coarse movement - Answers :What type of movement does 1 neuron and many muscle
fibers produce?
most in the brain, a few in spinal cord - Answers :Where do motor units originate?
tendon - Answers :What attaches bone to muscle?
fascicle - Answers :bundle of muscle fibers
False - Answers :A motor unit consists of a muscle fiber and all the nerve fibers that
innervate it (True/false)
False - Answers :Skeletal muscle fibers are composed primarily of thick actin and thin
myosin proteins (true/false)
true - Answers :Concentric contractions involve muscle shortening (true/false)
true - Answers :When a muscle fiber contracts, the myosin filaments connect onto the
actin filaments and pull the actin toward the middle of the myosin (true/false)
eccentric - Answers :What type of muscular contraction is more likely than the other
types of muscular contractions to produce delayed onset muscular soreness?
false - Answers :Highly trained individuals will not experience an oxygen deficit when
they start exercising at a sub-max level (true/false)
heart rate and stroke volume - Answers :cardiac output is a function of what two
elements?
Respiratory rate and tidal volume - Answers :pulmonary ventilation is a function of what
two elements?
true - Answers :As a result of endurance training, a person's resting heart rate and
submit exercise heart rate decrease, but a person's maximal heart rate does not change
(true/false)
true - Answers :Endurance exercises training increases the number of capillaries in the
muscles as well as increases the size of the resistance and conduit arteries (true/false)
true - Answers :During maximal exercise, most of the blood flow goes to the working
muscles, rather than the brain, heart, skin, or other organs (true/false)
hypertrophy - Answers :strength training can result in an increase in muscle size. What
is this called?
Alfonso Borelli - Answers :Who is known as the father of biomechanics
Kinetics - Answers :Examining how gravity affects motion is a study of (kinetics of
kinematics)
Kinematics - Answers :A description of how stride length and step height varies
between people with arthritis and those without is a study of (kinematics or kinetics)
,True - Answers :Speed has to do with distance, while velocity has to do with
displacement (true or false)
acceleration - Answers :The rate at which an object changes its velocity is called what?
True - Answers :Two of the four characteristics of force are that it has direction and
magnitude (true or false)
inertia - Answers :A body at rest or in motion continues in that state unless acted upon
by an outside and unbalanced force. this is called Newton's Law of (what)?
mass and force - Answers :Newton's law of acceleration states that the acceleration of
an object is dependent on what two things?
phosphagen system - Answers :Which energy system provides the most rapid source of
ATP breakdown?
phosphagen and glycolytic - Answers :Which energy system/s does/do not use oxygen?
aerobic - Answers :In which energy system/s is/are fatty acids used?
aerobic - Answers :In which energy system/s is/are proteins used?
phosphagen, anaerobic, and aerobic - Answers :In which energy system/s is/are
carbohydrates used?
stroke volume - Answers :The amount of blood ejected from the heart per each heart
beat is called what?
slow twitch - Answers :What type of muscle fibers tend to be small, produce low levels
of force, be resistant to fatigue, and have a high oxidative capacity?
Newton's law of action-reaction - Answers :As you are standing on the ground, you are
exerting a force on the ground. At the same time, the ground is exerting an equal force
on you. This is illustrating which of Newton's Laws?
JJ Watt. He has a greater mass - Answers :So JJ Watt and Dr. B are both running down
hill at the same speed. Which one has the greatest momentum (if either of them) and
why?
exercise physiology - Answers :physiological system (cell/muscle/heart/lungs)
responding to movements of the body
biomechanics - Answers :science of physical principles applied to biological systems;
study of how skeletal/muscular systems work under different conditions
, motor behavior - Answers :movement behavior that is both physiological and
psychological
motor control - Answers :how neuromuscular system coordinates muscles/limbs
involved in motor skills
motor learning - Answers :acquisition of motor skills (includes discrete and continuous
tasks)
motor development - Answers :study of changes in human motor behavior over the
lifespan, the processes that underlie these changes, and factors that affect them
discrete task - Answers :do it and it's done task. Uses the central nervous system for
timing (Ex: tennis serve)
continuous task - Answers :you determine when it's done task. Uses the muscle/limbs
for timing (Ex: dribbling basketball)
sport and exercise psychology - Answers :study of human behavior and cognition
(thoughts) that is within the context of physical activity
sport psychology - Answers :psychology within sport/competition
exercise psychology - Answers :exercise adherence (sticking with it)
sport history - Answers :examines sports from educational, professional, and leisure
pastime perspectives. Historians examine the establishment of sporting institutions that
have moved sports from pastime activities for children to commercial enterprise.
sport philosophy - Answers :area of philosophy that seeks to conceptually analyze
issues of sport as human activity
motor unit - Answers :a nerve and the muscle fibers it innervates/ makes us move
fine movement - Answers :What type of movement does 1 neuron and a few muscle
fibers produce?
coarse movement - Answers :What type of movement does 1 neuron and many muscle
fibers produce?
most in the brain, a few in spinal cord - Answers :Where do motor units originate?
tendon - Answers :What attaches bone to muscle?
fascicle - Answers :bundle of muscle fibers
