Life Jackets Help You Float Because

question 137

Multiple Choice

Life jackets help you float because

• A)the jacket causes you to weigh less.
• B)the jacket has the same density as an average human.
• C)the jacket repels water.
• D)if you sink,the jacket sinks.
• E)the combined density of you and the jacket is less than your density alone.

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Definitions:

Evacuation system

A coordinated plan and set of procedures designed to safely remove people from a dangerous or potentially dangerous area.

Tourniquet

An instrument for temporarily arresting the flow of blood to or from a distal part by pressure applied with an encircling device.

Invert

To turn upside down or inside out; in mathematics, it refers to finding the reciprocal of a number.

Collection tubes

Containers used for the collection and storage of samples such as blood, urine, or saliva, for laboratory analysis.