1. What is Density (ρ)?

Definition: Density is a measure of mass per unit volume. It's a fundamental property of materials that indicates how much matter is packed into a given space.

Purpose: Density calculations are essential in physics, engineering, construction, and material science to characterize materials and solve practical problems.

2. How Does the Density Calculator Work?

The calculator uses the formula:

Where:

• \( \rho \) — Density (kg/m³)
• \( m \) — Mass (kg)
• \( V \) — Volume (m³)

Explanation: The mass of an object is divided by its volume to determine its density. Higher density means more mass is concentrated in a given volume.

3. Importance of Density Calculation

Details: Density helps identify materials, determine buoyancy, calculate weights, and design structures. It's crucial for quality control and material selection.

4. Using the Calculator

Tips: Enter the mass in kilograms and volume in cubic meters. Both values must be greater than 0. The calculator will output density in kg/m³.

5. Frequently Asked Questions (FAQ)

Q1: What are common density units?
A: While kg/m³ is standard, g/cm³ (1 g/cm³ = 1000 kg/m³) and lb/ft³ are also commonly used.

Q2: What's the density of water?
A: Pure water at 4°C has a density of 1000 kg/m³ (1 g/cm³).

Q3: How does temperature affect density?
A: Most materials expand when heated (lower density) and contract when cooled (higher density), with water being a notable exception between 0-4°C.

Q4: What is relative density?
A: Relative density compares a material's density to that of water (unitless ratio).

Q5: How is density used in construction?
A: Density helps determine material weights, structural loads, and is used in mix designs for concrete and other building materials.