KHP 415 Quizzes 1-5

Elbow extension takes place in what plane? A) sagittal B) frontal C) transverse D) longitudinal

A) sagittal

Which of the following is a scalar? A) mass B) speed C) distance D) all of the above

D) all of the above

Which of the following occurs when a bone is caused to twist about the longitudinal axis? A) compression B) tension C)torsion D)none of the above

C) torsion

Neglecting the effect of air resistance, which of the following is/are true regarding the horizontal components of projectile velocity? A) remains constant throughout flight B) changes according to gravitational acceleration C) equal to 0 D) both A and B

A) remains constant throughout flight

Which of the following motions occurs primarily in the sagittal plane? A) running B) cartwheel C) pirouette D) all of the above

A) running

Which of the following types of force act parallel to a surface? A) shear B)compression C)tension D) all of the choices act parallel to a surface

A) shear

Why do elite long jumpers have take-off angles far less than the optimal 45*? A) take-off velocity is higher during lower take-off angles B) relative take-off heights is zero C) both A and B D) none of the above

A) take-off velocity is higher during lower take-off angles

Which of the following statements is false? A) the hip is distal to the knee B) the shoulder is superior to the hip C) superficial muscles are closer to the skin than deep muscles D) the triceps are posterior to the biceps

A) the hip is distal to the knee

Which of the following is/are true regarding a shot put and a softball of equal diameter? A) they have the same volume B) they have the same density C) both A and B D) none of the above

A) they have the same volume

Range of motion at a joint is a measurement of what? A) linear displacement B) angular displacement C) linear velocity D) angular velocity

B) angular displacement

Which of the following motions occurs primarily in the frontal plane? A) running B)cartwheel C) pirouette D)all of the above

B) cartwheel

Which of the following is NOT true about mass? A) quantity of matter B) changes depending on gravity C) measurement unit= kg D) affects force production E) all of the above are true

B) changes depending on gravity

Which of the angular direction is conventionally regarded as positive? A) clockwise B) counterclockwise C) flexion D)extension

B) counterclockwise

Which of the following is included in sports medicine? A) clinical aspects of exercise and sport B) scientific aspects of exercise and sport C) both clinical and scientific aspects of exercise and sport D) none of the above

C) both clinical and scientific aspects of exercise and sport

Marion Jones changes her velocity from 8 m/s to 11 m/s. Gail Devers changes hers from 7 m/s to 10 m/s. Who has the higher acceleration? A) Marioin B) Gail C) acceleration equal for both D) need more information

D) need more information

During a baseball pitch, a pitchers arm rotates through 80* of motion at the shoulder. If this is accomplished in 0.5 sec, which of the following statements is true? A) angular velocity is constant B) angular acceleration is constant C) both A and B D) none of the above are true

D) none of the above are true

The meter is the unit of measurement for which of the following? A) distance B)displacement C) speed D) only distance and displacement E) all of the above

D) only distance and displacement

Linear distance traveled per unit of time describes what? A) displacement B) velocity C) acceleration D) speed

D) sped

Which of the following is the most appropriate definition of biomechanics? A) the study of human movement B) the study of biological organisms C) the study of movement mechanics D) the study of the mechanical aspects of biological organisms

D) the study of the mechanical aspects of biological organisms

when you wear a backpack, your center of gravity shits in which direction? A) up B) back C) forward D) up and back

D) up and back

Which of the following is NOT true about weight? A) measurement unit = Ib B) measurment unit = N C) weight is a force D) changes depending on gravity E) all of the above

E) all of the above

Which of the following types of force exerts a squeezing effect on the body? A) shear B)compression C) tension D) all of the above

B)compression

Which of the following is a correct unit of torque? A) N-m B) N/s C) Ns D) kg*m

A) N-m

The rotary effect created by an eccentric force defines what? A) torque B) moment of force C) rotary force D) all of the above

D) all of the above

Which of the following is/are examples of superficial muscle(s)? A) biceps B) triceps C) gastrocnemius D) all of the above

D) all of the above

Which of the following is/are true regarding anatomical reference position? A) palms face forward B) erect posture C) starting position for describing motion D) all of the above

D) all of the above

What quantity will have the following units- rad/s? A) linear displacement B) angular displacement C) linear velocity D) angular velocity

D) angular velocity

Stress fractures results from which of the following types of loading? A) acute loading B) repetitive loading C) both acute and repetitive loading D) none of the above

B) repetitive loading

Foot pronation occurs at which joint? A) ankle B) subtalar C) both ankle and subtalar D) pronation does not occur in the foot

B) subtalar

In anatomical position, the forearm is in what position? A) pronated B) supinated C) flexed D) abducted

B) supinated

Which of the following describes center of gravity? A) intersection of the 3 cardinal planes B) the point around which a body's weight is equally balance regardless of body position C) none of the above

B) the point around which a body's weight is equally balance regardless of body position

Which of the following terms describes the angle formed between the longitudinal axes of two adjacent body segments? A) the static angle B) the relative angle C) the absolute angle D) none of the above

B) the relative angle

Which of the following terms describes the location of the center of rotation at a joint at a given instant in time? A) precise center B) exact center C) instant center D) none of the above

C) instant center

Abduction occurs in which plane? A) sagittal B) frontal C) transverse D) it depends on the action being performed

B) frontal

Which of the following describes the knee joint relative to the ankle joint? A) distal B) proximal C)medial D)lateral

B) proximal

A ball is kicked with an initial velocity of 10 m/s of an angle of 30*. Neglecting air resistance, what is the speed of the ball at landing/ A) 10 m/s B) 10 m/s multiplied by the sine of 30* C) 10 m/s multiplied by the cosine of 30* D) none of the choices are correct

A) 10 m/s

A ball rolling across a field with an acceleration of -0.5 m/s^2 rolls 12.5 m and then comes to a stop after 8 seconds. What was the balls initial speed? A) 4 m/s B) 16 m/s C) 12.5 m/s D) 6.25 m/s

A) 4 m/s

Which of the following are scalar quantities? A) angular distance B)angular velocity C) both A and B D) none of the above

A) angular distance

Which of the following terms would accurately describe the biceps muscle? A) anterior B) posterior C) medial D) lateral

A) anterior

Abduction takes place around which axis? A) Anteroposterior B) Mediolateral C) Longitudinal D) horizontal

A) anteroposterior

Which of the following is true regarding circumduction? A) combines flexion, extension, adduction and abduction B) synonymous with roation C) circumduction both combines flexion, extension, adduction and abduction and is synonymous with roation D)none of the above

A) combines flexion, extension, adduction and abduction

if the angular velocity of a batter's shoulders increases, what will happen to the linear velocity of the end of the bat? A) increase B) decrease C) stay the same D) end of the bat has no linear velocity

A) increase

Which of the following relationships is correct? A) m=F/a B) F= m/a C) a= m/F D) none of the above

A) m= F/a

internal rotation is synonymous with which of the following? A) medial rotation B) lateral rotation C) external rotation D) none of the above

A) medial rotation

The component of angular acceleration directed toward the center of curvature defines what? A) radial acceleration B) tangential acceleration C) angular acceleration D) linear acceleration

A) radial acceleration

Which of the following quantities is calculated the same as pressure? A) stress B) strain C) shear D)tension

A) stress

Which of the following components of projectile is affected by gravity? A) vertical component B) horizontal component C) both vertical and horizontal component D) depends on the individual situation

A) vertical component

If velocity is constant, then acceleration is what? A) zero B) constant, but not necessarily zero C) changing D) need more information

A) zero

If the knee joint goes through 100* of flexion during the down phase of a squat, what is the total angular distance during 10 complete squats? A) 1000* B) 2000* C) 0* D) none of the above

B) 2000*

Who is the pioneer that first uses anatomical drawing illustrating mechanical principle? A) Leonardo Da Vinci B) Giovanni Borelli C) Verne Thompson Inman D) Eadweard Muybridge

B) Giovanni Borelli

An angle formed by a body segment with respect to horizontal is what? A) relative angle B) absolute angle C)acute angle D) none of the above

B) absolute angle

Which of the following statements is/are true? A) increasing the surface area over which a force is distributed increases the amount of stress acting on the surface B) decreasing the surface area over which a force is distributed increases the amount of stress acting on the surface C) both A and B D) none of the above

B) decreasing the surface area over which a force is distributed increases the amount of stress acting on the surface

Which of the following is associated with kinematics? A) force B) displacement C)mass D) all of the choices are associated with kinematics

B) displacement

If angular acceleration is constant, then angular velocity must be? A) constant B) increasing or decreasing C) equal to zero D)none of the above

B) increasing or decreasing

Which of the following statements is true regarding qualitative analysis? A) it is always of a general nature B) is does not involve the use of numbers C) both A and B D) none of the above

B) is does not involve the use of numbers

Which of the following characteristics of a vector represents magnitude? A) its angle of orientation B) its length C) its direction D) all of the above

B) its length

A runner moving at a velocity of 6 m/s increases the velocity in a 2s time interval to a rate of 10 m/s. what is the rate of acceleration? A) 4 m/s^2 B) -4 m/s^2 C) 2 m/s^2 D) -2 m/s^2

C) 2 m/s^2

Which of the following is a correct unit of pressure? A) Newtons B) kg/cm^2 C) N/ cm^2 D) slugs

C) N/cm^2

A free body diagram includes which of the following? A) sketch of an object, body, or body part being analyzed B) vectors representations of all the forces acting on the system C) both A and B D) none of the above

C) both A and B

Which of the following statements is true regarding objects projected from the same level as they land? A) time up and time down are equal B) angle of decent is equal to angle of takeoff C) both statements are true D)none of the above

C) both A and B

Which of the following is an example of a static situation? A) a cyclist riding at a constant velocity B) a person balancing motionless on one foot C) both A and B D) none of the above

C) both a cyclist riding at a constant velocity and a person balancing motionless on one foot

Which of the following are transverse plane movements at the shoulder? A) horizontal abduction B) medial rotation C) both A and B D) none of the above

C) both horizontal abduction and medial rotation

Which of the following is an example of a kinetic consideration? A) muscle force producing a vertical jump B) impact force landing from a jump C) both A and B D) none of the above

C) both muscle force producing a vertical jump and impact force landing from a jump

Which of the following relationships are correct? A) 1kg= 2.2 Ibs B) 1 Ib= 4.45 N C) both of the relationships are correct D) none of the above

C) both of the relationships are correct

Which of the following quantities are equal? A) 2pi radians and 360* B) 270* and 3/4 revolution C) both are equal D) neither are equal

C) both quantities are equal

Radial acceleration is directly affected by which of the following? A) tangential velocity B) radius of rotation C) both A and B D) none of the above

C) both tangential velocity and radius of roation

What rules have to be followed when using the formula v=rw A) units for w have to be radian-based B) units for v and r must have the same base units (with time included in "v") C) both A and B D) there are no special rules

C) both units for w have to be radian-based and units for v and r must have the same base units (with time included in "v")

A ball is tossed vertically upward from a height of 2m with an initial velocity of 10m/s. Just before the ball hits the ground, its velocity will be what? A) 10m/s B) less than 10 m/s C) greater than 10 m/s D) not possible to predict

C) greater than 10 m/s

Which of the following is true about the Cartesian coordinate system? A) it is a special reference system used by biomechanics B) it can be used to describe 2-D or 3-D motion C) both A and B D) none of the above

C) it is a special reference system used by biomecahnics and it can be used to describe 2-D and 3-D motion

Which of the following is NOT an example of sagittal plane movement? A) flexion B) hyperextension C)lateral flexion D) plantar flexion

C) lateral flexion

Movements in the transverse plane occur around which axis? A) mediolateral B) anteroposterior C)longitudinal D) horizontal

C) longitudinal

Which of the following would not be measured in a kinematic analysis of a tennis serve? A) angular velocity B) linear velocity C) muscular force D) angular acceleration

C) muscular force

when final velocity is larger than initial velocity, the acceleration is what? A) zero B) negative C) positive D) average

C) positive

Which of the following affects the time that a horizontally projected object remains in the air? A) weight B) mass C) projection height D) all of the above

C) projection height

Which of the following types of force exerts a pull on the body as in muscle contraction? A) shear B)compression C) tension D)all of the above

C) tension

The negative sign in front of the acceleration due to gravity (-9.81 m/s^2) can mean which of the following? A) the projectile is traveling down and speeding up (negative direction) B) the projectile is traveling up and slowing down ( negative acceleration) C) the projectile is both traveling down and speeding up and traveling up and slowing down D) none of the above

C) the projectile is both traveling down and speeding up and traveling up and slowing down

Primarily in which plane does the swinging of a baseball bat occur? A) sagittal B) frontal C) transverse D) obtuse

C) transverse

A runner completes one full lap around a 400m track. What is her displacement? A) 400 m B) 400m * 2pi C) zero D) need more information

C) zero

Biomechanical research has contributed to which of the following? A) injury prevention B) enhanced sport performance C) equipment design D) all of the above

D) all of the above

Once a projectile is airborne, it is affected by which of the following? A) gravity B) air resistance C) release velocity D) all of the above

D) all of the above

Which of the following is/are true regarding a radian? A) it is equal to 57.3 degrees B) it is the size of the angle subtended by an arc of radius length C)it is a unit of angular displacement D) all of the choices are true

D) all of the choices are true

When the second hand on a clock makes a complete revolution, which of the following is/are true? A) angular distance is 360* B) angular displacement is 0* C) angular velocity is 6 deg/s D) both A and B E) all of the above

D) both angular distance of 360* and angular displacement is 0*

A bending force can result in which of the following types of stress? A) compression B) tension C) torsion D) both compression and tension E) all of the above

D) both compression and tension

Vector mechanics apply to which of the following? A) displacement B) velocity C) speed D) both A and B E) all of the above

D) both displacement and velocity

Maximizing tangential acceleration is important in which of the following situations? A) punting a football for distance B) serving a tennis ball C) throwing a dart D)both punting a football for distance and serving a tennis ball E) all of the choices are correct

D) both punting a football for distance and serving a tennis ball

The Greek letter delta is used to represent what? A) time B) displacement C)distance D) change in

D) change in

Most human movement falls into which category? A) rectilinear B) curvilinear C) angular or rational D) general

D) general

Which of the following is NOT a valid unit of angular velocity? A) radians per second B) revolutions per min C) degrees per hour D) gradients

D) gradients

Which of the following is/ are true regarding the apex in the trajectory of a projectile? A) it is the highest point in the flight B) vertical velocity is 0 C) direction changes D) both A and B E) all of the above

E) all of the above

Which of the following is/are correct units for angular speed? A) rpm B) deg/s C) rad/s D)both A and B E) all of the units are correct of angular speed

E) all of the above