Mass Density in Physics and Chemistry

This comprehensive guide explores the compréhension de la masse volumique et du volume and their mathematical relationships. The page presents three essential formulas for calculating density, mass, and volume in physics and chemistry.

Definition: Mass density is defined as the mass per unit volume, expressed in kilograms per cubic meter (kg/m³) or grams per cubic centimeter (g/cm³).

Highlight: The three fundamental equations presented are interconnected and can be rearranged to solve for different variables:

1. Density (ρ) = mass (m) / volume (V)
2. Mass (m) = density (ρ) × volume (V)
3. Volume (V) = mass (m) / density (ρ)

Vocabulary:

• ρ (rho): Symbol for density
• m: Mass in kilograms (kg)
• V: Volume in cubic meters (m³)

Example: If you have a cube of aluminum with a mass of 2.7 kg and a volume of 1 m³, its density would be calculated as: ρ = m/V = 2.7 kg/1 m³ = 2.7 kg/m³

The page effectively presents these relationships in a clear, mathematical format, making it easier for students to understand and apply these concepts in practical situations. The inclusion of units and variable definitions ensures proper application of these formulas in problem-solving scenarios.