# 47.4: Analysis


1. In general, by what factor are mph and m/s different?  Is it 2:1, 3:1, etc.?

2. How many times must you move the decimal?

1. To change between kilometers and meters

2. To change between kilograms and grams

3. Explain why the movement of the decimal is the same for the length (meters) measurement and the mass (grams) measurement in parts a, and b.