Question

1. which is longer :a megawatt or a kilowatt? how many larger is it?

Explanation:

Step1: Recall unit prefixes

Mega- ($M$) means $10^6$ and kilo- ($k$) means $10^3$. A watt (W) is a unit of power. So, 1 megawatt (MW) = $10^6$ W and 1 kilowatt (kW) = $10^3$ W.

Step2: Compare magnitudes

To find how many times larger a megawatt is than a kilowatt, divide the value of a megawatt in watts by the value of a kilowatt in watts: $\frac{10^6\ \text{W}}{10^3\ \text{W}} = 10^{6 - 3}=10^3 = 1000$.

Answer:

A megawatt is larger than a kilowatt. A megawatt is 1000 times larger than a kilowatt.