# Basic Biomechanics 7th Edition By Susan J. Hall – Test Bank

**Chapter 11**

**Angular Kinematics of Human Movement**

**Multiple Choice Questions**

- An angle formed by a body segment with respect to horizontal is what?

A.relative angle

absolute angle__B.__

C. acute angle

D. none of the above - If all other factors are held constant, what effect would “choking up” on a bat have on the resultant linear velocity of a hit ball?

A.increase

decrease__B.__

C. remain the same

D. need more information

- If angular acceleration is constant, then angular velocity must be

A.constant

increasing or decreasing__B.__

C. equal to zero

D. none of the above

- The component of angular acceleration directed toward the center of curvature defines what?

radial acceleration__A.__

B. tangential acceleration

C. angular acceleration

D. linear acceleration

- What quantity will have the following units? rad/s

A.linear displacement

B. angular displacement

C. linear velocity

angular velocity__D.__

- If the angular velocity of a batter’s shoulders increases, what will happen to the linear velocity of the end of the bat?

increase__A.__

B. decrease

C. stay the same

D. end of the bat has no linear velocity

- 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

instant center__C.__

D. none of the above

- Which of the following terms describes the angle formed between the longitudinal axes of two adjacent body segments?

A.the static angle

the relative angle__B.__

C. the absolute angle

D. none of the above

- Which angular direction is conventionally regarded as positive?

A.clockwise

counterclockwise__B.__

C. flexion

D. extension

- 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

all of the above are true__D.__

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