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

Chapter 11

Angular Kinematics of Human Movement

Multiple Choice Questions

1. 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
2. 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
   B. decrease
   C. remain the same
   D. need more information

3. 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

4. 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

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

6. 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

7. 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

8. 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

9. Which angular direction is conventionally regarded as positive?
   A.clockwise
   B. counterclockwise
   C. flexion
   D. extension

10. 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 above are true