Question 1

The metric system of measurement is based on the multiplication factor of 10.

The metric system utilizes a base of 10 for its units of measurement, allowing for easy conversion and calculation.

A) The length of Napoleon's forearm

This option is incorrect as the metric system is not based on arbitrary physical measurements related to individuals. Instead, it is founded on systematic principles that facilitate standardization across various scientific and practical applications.

B) 2

Option B is incorrect because the metric system does not operate on a binary multiplication factor. The system's design emphasizes decimal-based calculations, which are not compatible with a factor of 2.

C) 10

This is the correct answer. The metric system is fundamentally based on powers of 10, making it straightforward to convert between different units by simply shifting the decimal point.

D) Atomic weight of helium

This option is incorrect as the metric system does not depend on atomic weights or any specific element. Its foundation is rooted in a consistent decimal structure, which is independent of chemical properties.

Conclusion

The metric system's reliance on a multiplication factor of 10 is essential for its functionality and ease of use. Options A, B, and D fail to align with the core principles of the metric system, which emphasizes a systematic, decimal-based approach to measurement. Thus, option C stands out as the definitive answer.