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Biomaterials & Biomechanics > Kinematics > Flashcards

Kinematics Flashcards

1
Q
  1. The anatomical position:
    a. Is a reference point from which to describe relative positions
    b. Is a reference point from which to describe movements
    c. Is a reference point from which to describe planes of motion
    d. a and b
    e. a, b and c
A

e. a, b and c

a. Is a reference point from which to describe relative positions
b. Is a reference point from which to describe movements
c. Is a reference point from which to describe planes of motion

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2
Q
  1. Which of the following is not an anatomical plane
    a. Anterior
    b. Sagittal
    c. Transverse
    d. Frontal
    e. None of the above
A

a. Anterior

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3
Q

3.What is the difference between a scalar and a vector?

a. Nothing
b. Scalars have magnitude and direction, Vectors have magnitude only
c. Vectors have magnitude and direction, Scalars have magnitude only
d. Forces are not vectors
e. All of the above

A

c. Vectors have magnitude and direction, Scalars have magnitude only

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4
Q
  1. Which of the following is not a vector?

a. Displacement
b. Velocity
c. Acceleration
d. None of the above
e. All of the above

A

d. None of the above

(NB, displacement is a vector, it has magnitude and direction)

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5
Q
  1. Why is it necessary to use the anatomical position as a reference?

a. The body can move in space, making our usual reference systems difficult to apply
b. To make engineering students miserable
c. To allow us to define movements of the body in a clear way
d. a and c
e. a, b and c

A

d. a and c

a. The body can move in space, making our usual reference systems difficult to apply
c. To allow us to define movements of the body in a clear way

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6
Q
  1. Which of the following is true of anatomical planes

a. There are three anatomical planes
b. The flexion/extension plane is one of the anatomical planes
c. The transverse plane cuts the body from head to feet
d. The sagittal plane is the plane where abduction occurs
e. b and c

A

a. There are three anatomical planes

Regarding:

c. The transverse plane cuts the body horizontally (the frontal and sagittal cut the body from head to feet)
d. The Frontal plane is the plane where abduction occurs (not sagittal)

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7
Q
  1. Which of the following statements is false?
    a. The transverse plane is the plane in which internal rotation of the humerus is defined
    b. The sagittal plane is the plane in which flexion of the humerus is defined
    c. The frontal plane is the plane in which abduction of the humerus is defined
    d. All of the above
    e. None of the above
A

e. None of the above

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8
Q
  1. The sign convention recommended in this course is defined as:
    a. +y up, + x right, + moment CCW
    b. +y up, + x left, + moment CCW
    c. +y up, + x left, + moment CW
    d. +y down, + x left, + moment CCW
    e. None of the above
A

a. +y up, + x right, + moment CCW

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9
Q
  1. Angular acceleration is defined as:
    a. The derivative of linear velocity with respect to time
    b. The derivative of angular displacement with respect to time
    c. The derivative of angular velocity with respect to time
    d. The derivative of linear acceleration with respect to time
    e. All of the above
A

c. The derivative of angular velocity with respect to time

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10
Q
  1. Which of the following statements about linear velocity is NOT true?

a. Linear velocity of the derivative of linear displacement with respect to time.
b. Is a vector
c. Cannot be the same as the average angular velocity
d. Has the units of m/s
e. None of the above

A

c. Cannot be the same as the average angular velocity
(e. g. 0 angular and linear velocity)

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11
Q
  1. Based on your motion capture lab data which of the following is NOT possible to calculate?
    a. Linear displacement of the forearm segment
    b. Linear velocity of the forearm segment
    c. Linear acceleration of the forearm segment
    d. Joint reaction force at the elbow
    e. None of the above
A

d. Joint reaction force at the elbow

(Lab data measured velocities, no forces)

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12
Q
  1. Select the correct order of steps to solve a kinematics problem

a. Identify what is known, identify what is unknown, apply answer to clinical question, select formula, solve
b. Identify what is known, identify what is unknown, select formula, solve, apply answer to clinical question
c. Identify what is known, identify what is unknown, solve, select formula, apply answer to clinical question
d. Any of the above
e. None of the above

A

b. Identify what is known, identify what is unknown, select formula, solve, apply answer to clinical question

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13
Q
  1. Which of the following is not an assumption made when performing the 10-metre walk test

a. The person accelerates in the first 2 metres
b. The person decelerates in the last 2 metres
c. The person has uniform linear velocity for the whole test
d. The person starts the test from rest
e. None of the above

A

c. The person has uniform linear velocity for the whole test

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14
Q
  1. Plantarflexion of the ankle occurs in the following plane:

a. Sagittal
b. Frontal
c. Transverse
d. Flexion
e. None of the above

A

a. Sagittal

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15
Q
  1. Define anterio-medial with reference to the anatomical position

a. Towards the front and outside of the body
b. Towards the front and towards the midline of the body
c. Towards the front and bottom of the body
d. Towards the front and top of the body
e. None of the above

A

b. Towards the front and towards the midline of the body

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16
Q
  1. Define superior-lateral with reference to the anatomical position

a. Towards the head and back of the body
b. Towards the head and midline of the body
c. Towards the head and the front of the body
d. Towards the head and away from the midline of the body
e. None of the above

A

d. Towards the head and away from the midline of the body

17
Q
  1. What is the difference between kinematics and kinetics?

a. Kinematics only works with moving systems and Kinetics only works with systems that don’t move
b. Kinematics uses markers and kinetics doesn’t
c. Kinematics is the study of motion without reference to forces, Kinetics is the study of motion with reference to the effect of forces
d. All of the above
e. None of the above

A

c. Kinematics is the study of motion without reference to forces, Kinetics is the study of motion with reference to the effect of forces

18
Q
  1. On an arm which joint is proximal to the elbow?

a. Wrist
b. Shoulder
c. Distal Interphalangeal Joint
d. Proximal Radio-Ulnar Joint
e. None of the above

A

b. Shoulder

19
Q
  1. On a leg which joint is distal to the knee?
  2. On a leg which joint is distal to the knee?
    a. The patella-femoral joint
    b. The Tibio-femoral joint
    c. The Hip
    d. The Shank
    e. The Ankle
A

e. The Ankle

20
Q
  1. Which movements of the hip occurs in the sagittal plane?

a. Hip flexion/adduction
b. Hip flexion/extension
c. Hip flexion/abduction
d. Hip flexion/external rotation
e. Hip flexion/internal rotation

A

b. Hip flexion/extension

21
Q
  1. Which movements of the shoulder occurs in the transverse plane?

a. Shoulder internal rotation and shoulder external rotation
b. Shoulder abduction and shoulder adduction
c. Shoulder internal rotation and shoulder flexion
d. Shoulder external rotation and shoulder flexion
e. None of the above

A

a. Shoulder internal rotation and shoulder external rotation

Biomaterials & Biomechanics (4 decks)

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