Units and Measurements

Fundamental quantities like length

Fundamental quantities like length, mass, and time are independent and form the base for measurement. Derived quantities such as speed, area, and forc

The SI system is a globally

The SI system is a globally accepted metric system with seven base units: metre (m), kilogram (kg), second (s), ampere (A), kelvin (K), candela (cd),

Significant figures are the digits

Significant figures are the digits in a measurement that are known reliably, including the first uncertain digit. Rules include: all non-zero digits a

Every measurement has some error

Every measurement has some error. Systematic errors arise from flaws in instruments or procedures, while random errors occur due to unpredictable fluc

Physical quantities have dimensions expressed

Physical quantities have dimensions expressed in terms of mass (M), length (L), and time (T). Dimensional analysis checks if equations are dimensional