Physical quantities are anything that the mind can think of. Dreams, thoughts and feelings are quantities.

Physical quantities are any activities that human beings can participate in.

Physical quantity are anything that can be counted or measured and a value be placed on.

Physical quantities are things that CANNOT be counted or measured.

Not measurable;

Related to each other;

Not related to each other;

Measurable.

Prefixes and suffixes;

The metric or international system (SI) of units;

Scientific names and units;

Millimeter, centimeter and kilogram.

Kilogram;

Meter;

Miles

Seconds

Fundamental or prefix quantities

Fundamental or derived quantities

Derived quantities or prefix quantities

Unit quantities or prefix quantities