Which prefix means one thousand?

Study for the MTA Electrical Test. Use our flashcards and multiple choice questions to prepare, each question includes hints and explanations. Achieve success on your exam!

Multiple Choice

Which prefix means one thousand?

Explanation:
Understanding prefixes and powers of ten is key here. The prefix that means one thousand is kilo-, which multiplies a unit by 10^3. That’s why kilovolt (kV), kilowatt (kW), and kiloampere (kA) are 1000 times their base units. So the value that represents one thousand is 1000, the amount that kilo- indicates. The other magnitudes shown correspond to different scales: 0.001 is a thousandth (milli-), 10 is ten (deca-), and 100 is one hundred (hecto-), not thousand.

Understanding prefixes and powers of ten is key here. The prefix that means one thousand is kilo-, which multiplies a unit by 10^3. That’s why kilovolt (kV), kilowatt (kW), and kiloampere (kA) are 1000 times their base units. So the value that represents one thousand is 1000, the amount that kilo- indicates. The other magnitudes shown correspond to different scales: 0.001 is a thousandth (milli-), 10 is ten (deca-), and 100 is one hundred (hecto-), not thousand.

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