Page 1: Physical Quantities and Scientific Notation

This page introduces the fundamental concepts of physical quantities and measurement units in the sistema internazionale di misura. Physical quantities are defined as measurable properties, with each requiring a specific unit of measurement as a reference point.

Definition: A physical quantity is any property that can be measured and quantified.

Highlight: The unità di misura fisica tabella establishes standardized reference points for measurements.

Example: Scientific notation is demonstrated using the number 47,800,000, which can be written as 4.78 x 10⁷.

Vocabulary: Notazione scientifica is a method of writing very large or small numbers as a product of a coefficient (between 1 and 10) and a power of 10.

Page 2: The International System of Units

This page details the sistema internazionale di misura spiegato with its seven fundamental units and derived quantities. The system establishes a standardized approach to measurement across scientific disciplines.

Highlight: The 7 grandezze fondamentali del sistema internazionale are length, time, mass, temperature, electric current, luminous intensity, and amount of substance.

Example: Density is presented as a derived unit, calculated as mass (kg) divided by volume (m³).

Definition: Le 7 unità di misura fondamentali each have specific symbols and units: meter (m), kilogram (kg), second (s), ampere (A), kelvin (K), mole (mol), and candela (cd).

Vocabulary: Grandezze derivate are quantities that can be expressed in terms of fundamental units, such as density (kg/m³).