The difference between quantity and unit in "16 pounds" is the unit is pounds and the quantity is 16.
rate
It is the rate.
A unit is defined as a quantity chosen as a standard in terms of which other quantities may be expressed. This is why we have different units for different types of measurements.
The SI unit for "amount of matter" is the mole, defined as that quantity of a substance that contains as many elementary units (atoms or molecules, depending on what the substance is) as there are atoms in precisely 12 grams of carbon-12.
Weight: the amount or quantity of heaviness or mass; amount a thing weighs. Mass: a body of coherent matter, usually of indefinite shape and often of considerable size: example: When on the moon for example, your weigh will differ from your weight on earth. Your mass however does not change.
No they will not be the same. Buoyant force is the weight of liquid displaced and always acts upwards. As the size differs the quantity of liquid displaced will differ and hence the buoyant force would surely differ.
A scalar quantity defines only magnitude, while a vector quantity defines both a magnitude and direction.
A standard use for a measurement of a physical quantity is called the unit of that physical quantity
It is a unit rate.A unit rate.
The quantity of matter per unit volume is the density.
No, a unit is a dimension.
A unit.
A scalar quantity defines only magnitude, while a vector quantity defines both a magnitude and direction.
the physical quantity is distance and unit is meters
Femtometer is a unit of length or distance.
"Dimensionless" means it doesn't have a unit.
Unit Rate
it is a unit rate