Question

which prefix added to the base unit means times 1000? multiple choice
mega
centi
kilo
milli

Explanation:

To determine the prefix that means times 1000 when added to a base unit, we analyze each option:

• "mega" means \(10^6\) (times 1,000,000), not 1000.
• "centi" means \(10^{-2}\) (one - hundredth), not 1000.
• "kilo" means \(10^3\) (times 1000). For example, a kilometer is 1000 meters.
• "milli" means \(10^{-3}\) (one - thousandth), not 1000.

Answer:

C. kilo