Physical World and Measurement

Errors arising out of unknown causes with varying value in each measurement

Errors arising out of known causes

Multiple measurements show the same constant error

Constant Error Explanation

Weighing machine showing 1 kg in the scale when no object is placed on it.

Expressing physical quantity based on the fundamental unit of mass, length and time

Actual volume occupied by the atom is 2/3 rd of the volume of individual atoms in substance

Avgadro Hypothesis Explanation

Actual volume occupied by the atom of a substance is less(2/3) than the […]

The units are meter, kilogram and second in this measurement system

The units are foot, pound and second in this measurement system

The units are centimeter, gram and second in this measurement system

Units which are derived from fundamental units

The base units which are not dependent on any other units