Which prefix has the symbol n?

Which prefix should be used for 10^-6?

Why are prefixes used with SI units?

Which SI prefix represents 10^3?

Which conversion is correct?

The unit coulomb can be expressed in terms of base units as:

Which value is equal to 2 ms?

Which derived quantity is expressed in pascal?

In scientific notation, the numerical part is usually written as:

Which expression represents the SI unit of speed?

Which number is correctly written in scientific notation?