Kaplan Nursing Entrance Practice Exam

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Prepare for the Kaplan Nursing Entrance Exam with our comprehensive quiz. Utilize flashcards and multiple choice questions, each with detailed hints and explanations, to increase your readiness and confidence for the test!

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What does the Greek letter 'μ' represent in physics?

Mass
Charge
Micro
Intensity

The correct answer is: Micro

The Greek letter 'μ' commonly represents the prefix "micro" in the International System of Units (SI). It denotes a factor of one millionth (10^-6) of a unit. For example, one micrometer (μm) is one-millionth of a meter, and one microgram (μg) is one-millionth of a gram. This usage of 'μ' is particularly important in fields like physics and engineering, where it is frequently employed to describe very small measurements. While mass is often denoted by the letter 'm' and certain properties like magnetic permeability are represented by 'μ', in the context of the question, the association with "micro" is the most prevalent and relevant. Charge and intensity are represented by other symbols in the sciences, such as 'q' for charge and 'I' for intensity, further underscoring why "micro" is the appropriate interpretation of 'μ' in this scenario.