Use of SI units and their prefixes key terms

SI Prefix

Precision is how closely repeated measurements agree with each other. In uncertainty, error and data quality, it describes repeatability and spread, not whether the result is close to the true value.

Standard Form

A way of expressing numbers as a product of a number between 1 and 10 and a power of ten.

Homogeneous Equation

An equation where all terms have the same dimensional units, ensuring consistency in physical calculations.

SI unit

A standard measurement used to quantify physical quantities, such as meters for length or kilograms for mass.

derived unit

A unit that is derived from the base SI units, such as meters per second (m/s) for speed.

homogeneous equation

An equation where all terms have the same dimensional units, ensuring consistency in physical calculations.

homogeneous equations

Equations in which all terms have the same dimensional units, ensuring consistency in physical calculations.

SI units

International System of Units, a standardized system used for measuring physical quantities, including base and derived units.

unit comparison

The process of checking if the units on both sides of an equation are equivalent to confirm its validity.

SI unit

A standard unit of measurement defined by the International System of Units, used to quantify physical quantities.

standard form

A way of expressing numbers as a product of a number between 1 and 10 and a power of ten, facilitating easier calculations and comparisons.

homogeneous equation

An equation in which all terms have the same dimensional units, ensuring consistency in physical calculations.