Introduction to Physics and Measurements

This set of flashcards covers key concepts from the lecture on physics, scientific methods, measurements, and units.

Physics

The science that investigates matter, energy, and space and their relationships.

Scientific Method

A series of steps including problem statement, observation, hypothesis formation, experimental testing, and hypothesis acceptance or rejection.

Hypothesis

A proposed explanation for a phenomenon, which can be tested through experiments.

Physical Quantity

A quantifiable property ascribed to a phenomenon, body, or substance.

SI Unit

The international system of units established for measuring physical quantities.

Significant Figures

Digits that carry meaning contributing to the precision of a number, excluding leading zeros.

Conversion Factor

A ratio used to convert between two different units of measurement.

Rounding Rules

Guidelines for adjusting numbers to reflect significant figures during calculations.

Mass

A measure of the amount of matter in an object, commonly measured in kilograms.

Force

An interaction that causes an object to accelerate, measured in newtons.