A useful method of expressing very small or very large numbers is

• scientific notation

• arabic numerals

• the metric system

• roman numerals

All of the following are base units of the SI system except:

• kilogram

• kelvin

• meter

• volt

Select the list which contains only SI basic units.

• liter, meter, second, watt

• joule, kelvin, kilogram, watt

• candela, kelvin, meter, second

• joule, newton, second, watt

How many basic units does the SI system have

• 4

• 5

• 7

• 10

The base SI unit of time is

• hour

• minute

• second

• millisecond

The metric prefix for one one-thousandth is

• mili

• centi

• kilo

• mega

The metric prefix for one one-hundredth

• mili

• centi

• kilo

• mega

A quantity that can be measured is a

• base quantity

• physical quantity

• derived quantity

• scalar quantity

Physical quantities that cannot be derived from other physical quantities are

• base quantity

• derived quantity

• physical quantity

• scalar quantity

What is the SI unit for mass?

• g

• kg

• N

• mg