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KIN 151 > Angular Kinematics Terms > Flashcards

Angular Kinematics Terms Flashcards

1
Q

Absolute angle

A

Angular orientation of a body segment with respect to fixed line of reference

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2
Q

Anatomical reference position

A

Reference point on the body in anatomical position

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3
Q

Angular acceleration

A

Change in angular velocity over change in time, alpha

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4
Q

Angular displacement

A

Change in position, theta

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5
Q

Angular distance

A

Total length of travel, phi

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6
Q

Angular speed

A

Change in angular distance over change in time, sigma

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7
Q

Angular velocity

A

Change in angular displacement over change in time, omega

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8
Q

Axis of rotation

A

Body revolving around a central line/point

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9
Q

Clockwise rotation

A

Negative numbers

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10
Q

Counterclockwise rotation

A

Positive numbers

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11
Q

External angle

A

Angle outside of two segments

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12
Q

General motion

A

Combo of angular/linear motion

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13
Q

Goniometer

A

Instrument that measures angles

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14
Q

Instant center

A

Location of joint center of rotation

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15
Q

Internal angle

A

Angle within two segments

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16
Q

Pitch

A

Rotate around mediolateral axis

17
Q

Radial acceleration

A

Acceleration of a body in angular motion directed toward the center of curvature; change in direction, no change in speed

18
Q

Radian

A

Unit of angular measure in angular-linear kinematic quantity conversions; 57.3 degrees

19
Q

Radius of rotation

A

Distance from axis of rotation to point of interest on rotating body

20
Q

Relative angle

A

Angle at a joint formed between longitudinal axes of adjacent segments

21
Q

Right hand rule

A

Procedure for identifying the direction of an angular motion vector

22
Q

Roll

A

Rotate about anteriorposterior axis

23
Q

Tangential acceleration

A

Acceleration of a body in tangential motion directed along a tangent to the path of motion; change in speed

24
Q

Total acceleration

A

Tangential AND radial acceleration

25
Q

Yaw

A

To rotate around up/down vertical axis (longitude)

KIN 151 (12 decks)

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