Deck 20: Locomotion: When Suspended and Free of Support

Question 1

Why should one initiate the second stroke before coming to a complete stop in swimming a resting stroke such as breast stroke or side stroke?

Answer 1

maintain forward momentum

Question 2

Which lever class is demonstrated by the thighs in the flutter kick (down phase) during the front crawl?

A) 1^st class
B) 2^nd class
C) 3^rd class
D) a force couple

Answer 2

3^rd class

Question 3

Which factor contributes to form drag in swimming and objects moving through the air?

A) displacement
B) total surface area
C) size of object
D) cross sectional area

Answer 3

cross sectional area

Question 4

Which of the following is true in the arm motion of a front crawl stroke?

A) pressing toward the bottom moves the body up
B) pressing toward the surface moves the body up
C) a high elbow causes great resistance
D) pressing backward moves the body backward

Question 5

What happens to drag on the body as velocity increases?

A) increases
B) decreases
C) stays the same
D) not enough information

Question 6

In which direction will the body move if hands press down and back against the water in a sculling motion?

A) down and back
B) down and forward
C) up and back
D) up and forward

Question 7

Explain the function of the S-curve path followed by the hand in most swimming strokes.

Question 8

Why will one's feet drop if the head is lifted in a back float position in swimming?

Question 9

Why is a football lineman more likely to float than a marathon runner?

Question 10

What is the joint action in the shoulder girdle and glenohumeral joint in the pull phase of the front crawl stroke?

A) downward rotation and adduction of scapula-extension and inward rotation of humerus
B) downward rotation of scapula-extension and abduction of humerus
C) upward rotation and abduction of scapula-flexion and adduction of humerus
D) upward rotation of scapula-extension and inward rotation of humerus

Question 11

Which portion of the front crawl stroke contributes the most to stroke velocity?

A) kick
B) arm recovery
C) arm pull
D) action of the feet

Question 12

Explain the effects of pulling too wide in the breast stroke in kinesiological terms.

Question 13

Which are the two forces that are primarily responsible for propulsion in swimming?

A) drag and reaction forces
B) lift and buoyancy
C) drag and lift forces
D) reaction forces and buoyancy

Question 14

All other factors being equal, which of the following factors govern the speed attained in any swimming stroke?

A) force and distance
B) stroke length and stroke frequency
C) stroke frequency and stroke force
D) stroke force and stroke length

Question 15

In which direction should the person paddling on the left in the back push the paddle against the water in order to turn the canoe to the left?

A) toward the canoe
B) away from the canoe
C) forward
D) backward
Short Answer Questions