SI units and prefixes Original Scenario-Based Practice

Questions

1. 1.

   An autonomous exploratory probe analyzing a crystalline mineral on a distant moon logs three raw sensor readings: a crystal length of $6.50 \times 10^4\ \text{nm}$, a sample mass of $3.50 \times 10^4\ \text{mg}$, and a temperature of $-23.15\ ^\circ\text{C}$. Before transmitting telemetry to Earth, the probe's onboard computer must convert each recorded value into its corresponding International System of Units (SI) base unit. Which of the following statements correctly identifies a recorded measurement expressed properly in its fundamental SI base unit?

   • A) The crystal length is equivalent to $6.50 \times 10^{-5}\ \text{cm}$.
   • B) The sample mass is equivalent to $3.50 \times 10^{-2}\ \text{kg}$.
   • C) The sample mass is equivalent to $3.50 \times 10^1\ \text{g}$.
   • D) The temperature is equivalent to $-23.15\ \text{K}$.

Answers and step-by-step solutions appear after you finish the test.