Question

1. 0.5 m = km 10

Explanation:

Step1: Recall unit conversion factor

We know that \( 1\space km = 1000\space m \), so to convert meters to kilometers, we divide by \( 1000 \) (or multiply by \( \frac{1}{1000} = 10^{-3} \)).

Step2: Perform the conversion

Given \( 0.5\space m \), to convert to kilometers, we use the conversion factor: \( 0.5\space m\times\frac{1\space km}{1000\space m} \).
Simplifying this, \( 0.5\times10^{-3}\space km = 5\times10^{-4}\space km \) (or \( 0.0005\space km \)).

Answer:

\( 5\times10^{-4} \) (or \( 0.0005 \))