Which of the following is the appropriate unit of a measure to express the weight of a pen?
A.
Liter
B.
Milliliter
C.
Gram
D.
Kilogram
The Correct answer and Explanation is:
The appropriate unit of measure to express the weight of a pen is C. Gram.
When determining the most suitable unit for measuring the weight of an object, it’s essential to consider the object’s size and typical weight range. In the case of a pen, which usually weighs between 5 to 20 grams, grams are the most appropriate unit.
A. Liter and B. Milliliter are both units of volume, not weight. A liter is typically used for measuring larger quantities of liquids, such as a bottle of water, while a milliliter is used for smaller volumes, like doses of medication or ingredients in cooking. Neither of these units applies to the measurement of weight.
D. Kilogram is also a unit of weight, but it is more suitable for larger objects. A kilogram is equivalent to 1,000 grams, making it too large for measuring lighter items like a pen. For example, if you were to say a pen weighs 0.02 kilograms, it would be cumbersome compared to saying it weighs 20 grams.
In practical applications, grams provide a more precise and understandable measure for lightweight items. For instance, if a student were asked to weigh a pen for a school project, using grams allows for better accuracy and ease of understanding, particularly when compared to other everyday objects.
Moreover, in scientific contexts, where precision is paramount, grams are preferred for weighing small items, ensuring that measurements can be replicated and compared with other similar items. Therefore, grams serve not only as a standard for light weights but also as a commonly understood measure in daily life and various academic fields, making option C. Gram the correct choice.