Which of the following choices would correctly use conversion factors and units to convert a measurement in micrometers to kilometers?

Question

Quizplus · Accepted Answer

To convert micrometers to kilometers, we need to divide the measurement in micrometers by 1,000,000,000 (1 billion). This is because there are 1 billion micrometers in a meter, and 1000 meters in a kilometer. Therefore, we can set up the conversion factor as follows:

1 km / 1,000,000,000 μm

Multiplying the measurement by this conversion factor will give us the answer in kilometers.

Option B shows this conversion factor correctly, so it is the best choice.

Which of the Following Choices Would Correctly Use Conversion Factors