Physics Unit 1 Quiz 2

A microlaser has an optical power of 5 milliwatts and a wavelength of 10 microns. The prefix milli- means ___.

• one-thousandth

• one-sextillion

• one-quadrillionth

• one thousand

The MIT scientists found that nanotubes were more than one million times more conductive than materials currently used in airplane skins, making airplanes with this new material more resistant to damage from lightning.

The prefix used to express something that is a million times is ___.

• deka-

• hecto-

• kilo-

• mega-

A scientist involved in the nanotube research stated that substantial improvement in the airplane's construction material could be achieved with just one percent or one-hundredth of the mass being nanotubes.

The prefix used to express one-hundredth is ___.

• deka-

• nano-

• kilo-

• centi-

Choose the meaning for the prefix given.

centisecond

• one-thousandth of a second

• ten seconds

• one-hundredth of a second

• one-trillionth of a second

Choose the meaning for the prefix given.

kilometers

• one-thousandth of a meter

• one thousand meters

• one-hundredth of a meter

• one-trillionth of a meter

The definition of an angstrom is ___.

• a metric unit equal to one ten-billionth of a meter

• a measurement such as length, width or height

• equal in size or quantity

• a step or degree

The definition of a dimension is ___.

• a metric unit equal to one ten-billionth of a meter

• a measurement such as length, width or height

• equal in size or quantity

• a step or degree

The definition of an equivalent is ___.

• a metric unit equal to one ten-billionth of a meter

• a measurement such as length, width or height

• equal in size or quantity

• a change in size

The definition of a gradation is ___.

• a metric unit equal to one ten-billionth of a meter

• a measurement such as length, width or height

• a step or degree

• a change in size

Choose the meaning for the prefix given.

micro

• one-thousandth

• one thousand

• one-millionth

• one-billionth