When injury results from a single large force application, such as a tackle, the injury is usually termed what?

When injury results from a single large force application, such as a tackle, the injury is usually termed what? 

A. acute
B. chronic
C. repetitive
D. all of the above


Answer: A. acute

Which of the following is true regarding electromyography?

Which of the following is true regarding electromyography? 

A. treats muscle injury with electrical impulses
B. measures the electrical activity produced by a muscle
C. both A and B
D. none of the above


Answer: D. none of the above

Which of the following statements is/are true regarding vector algebra?

Which of the following statements is/are true regarding vector algebra? 

A. In vector resolution, when a vector is resolved into two components, they are always perpendicular.
B. In vector composition, only perpendicular components can be composed into a resultant.
C. both A and B
D. none of the above


Answer: A. In vector resolution, when a vector is resolved into two components, they are always perpendicular.

When absorbing the force of a baseball, which of the following will change the impulse?

When absorbing the force of a baseball, which of the following will change the impulse? 

A. reduce the force with which the ball is thrown
B. wear a catcher's mitt
C. "give" with the ball when catching
D. both A and B
E. all of the above


Answer: E. all of the above