Tag: unconventional units of measurements

A quintal is a unit of mass in the metric system which is equal to $100$ kilograms.

Since the physical quantity mass has only magnitude but not direction, thus mass is a scalar quantity.

Since,  $1\ Fm={10}^{-15}m$

Atomic mass is the mass of an atom. An atomic mass unit (symbolized AMU or amu) is defined as precisely $\dfrac{1}{12}$ the mass of an atom of carbon-12.

Out of these, meter is the largest.
$1 millimeter = 10^{-3} m$
$1 Angstrom = 10^{-10}m$
$1 Fermi = 10^{-15}m$
Thus Fermi is the smallest.

Parallactic second or parsec is a unit of distance defined as the distance at which one astronomical unit subtends an angle of one arcsecond, which is equal to 3.26 light years.

The prefix used for $\displaystyle { 10 }^{ -9 }$ is nano and prefix used for $10^9$ is Giga

Gram is the unit of mass in the CGS system