Word Study #6

The prefix kilo- means "one thousand." A kilowatt, for example is a unit of electrical power equal to 1,000 watts. A kilometer is a unit of distance in the metric system equal to ______ meters.

• 1

• 10

• 100

• 1000

The word that means "a unit of weight equal to 1,000 grams" is __________.

• kilogram

• kilovolt

• kilocalorie

The word that means "a unit used to measure the frequency of radio waves equal to 1,000 cycles" is ____________.

• kilobar

• kilocycle

• kiloliter

The word that means "a unit of capacity in the metric system equal to 1,000 liters" is _______.

• kiloton

• kilovolt

• kiloliter

From the examples we have just studied, we can tell that the prefix ___________ means "one thousand."

• centi-

• kilo-

• semi-

The prefix milli- means "one thousandth of." A milligram means one thousandth of a gram." Milliliter, for example, means "__________ a liter."

• one thousandth of

• one tenth of

The word that means "one thousandth of a second" is__________.

• milliwatt

• milligal

• millisecond

The word that means "one thousandth of a volt of electricity" is _______________.

• milligram

• millivolt

• millidegree

The word that means "a unit of barometric pressure equal to one thousandth of a bar" is__________.

• millibar

• millimeter

• milligram

From the examples we have just studied, we can tell that the prefix _____________ means "one thousandth of."

• semi-

• milli-

• bi-