Physical Quantities and Measurement Quiz

Physics plays a crucial role in advancing science, technology, and society by providing the fundamental understanding of natural phenomena and the principles underlying technological innovations and societal developments.

Physical quantities are based on numerical magnitude and a unit. They consist of a numerical value representing the magnitude of the quantity and a unit representing the scale or dimension.

Base physical quantities are independent and cannot be expressed in terms of other physical quantities, while derived physical quantities are defined in terms of base quantities through mathematical combinations.

<p>The seven SI units are meter (m), kilogram (kg), second (s), ampere (A), kelvin (K), mole (mol), and candela (cd).</p> Signup and view all the answers

<p>Using significant figures is important for recording and stating results because it helps to communicate the precision of measurements and calculations, indicating the reliability of the reported values.</p> Signup and view all the answers