Which prefix means [tex]$1 / 10$[/tex] of a unit in the metric system?
A) Milli
B) Deci
Answer (1)
The question asks which prefix represents 10 1 of a unit.
'Milli' represents 1000 1 of a unit.
'Deci' represents 10 1 of a unit.
Therefore, the answer is B) Deci. B
Explanation
Understanding the Question We are asked to identify which prefix in the metric system represents 10 1 of a unit. The options are Milli and Deci.
Recalling Metric Prefixes Let's recall the meanings of the metric prefixes Milli and Deci.
Meaning of 'Milli' The prefix 'Milli' represents 1000 1 or 0.001 of a unit. For example, a millimeter (mm) is 1000 1 of a meter.
Meaning of 'Deci' The prefix 'Deci' represents 10 1 or 0.1 of a unit. For example, a decimeter (dm) is 10 1 of a meter.
Identifying the Correct Prefix Comparing the values, we see that 'Deci' represents 10 1 of a unit, which matches the question.
Final Answer Therefore, the prefix that means 10 1 of a unit in the metric system is Deci.
Examples
In everyday life, understanding metric prefixes helps in various measurements. For instance, if you're measuring fabric, knowing that a decimeter is one-tenth of a meter allows you to quickly estimate lengths. Similarly, in cooking, if a recipe calls for a deciliter of liquid, you know it's one-tenth of a liter. These prefixes provide a convenient way to express smaller or larger quantities relative to a base unit.
