Water Safety Instructor (WSI) Practice Exam

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Which of the following best describes "drag" in swimming?

The force of pushing water backwards
The resistance faced while moving through water
The speed of movement in the water
The effect of buoyancy on a swimmer

The correct answer is: The resistance faced while moving through water

The concept of "drag" in swimming refers specifically to the resistance encountered by a swimmer as they move through the water. This resistance is primarily due to the water molecules pushing against the body, making it more challenging to propel oneself forward. Understanding drag is crucial for swimmers as it directly impacts their efficiency and speed in the water. Swimmers often work on techniques to minimize drag, such as streamlining their bodies, optimizing their stroke technique, and choosing appropriate gear. In contrast, the other options focus on different aspects of swimming that do not accurately define drag. The force of pushing water backwards relates to propulsion rather than resistance. The speed of movement in the water pertains to how fast a swimmer can travel but does not define the resistance faced. Buoyancy refers to the upward force exerted by water that allows swimmers to float and is not related to the concept of drag. Thus, the correct definition of drag is clearly captured in the option that emphasizes the resistance faced while moving through the water.